CS314156-A
Best Practices for
Environmental Cleaning
in Healthcare Facilities:
in Resource-Limited Settings
Division of Healthcare Quality Promotion
VERSION 2
ii
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
CS295875-A
This document provides guidance on best practices for environmental cleaning procedures and
programs in healthcare facilities in resource-limited settings. It was developed as a collaboration
between the Centers for Disease Control and Prevention (CDC) and the Infection Control Africa
Network (ICAN).
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings is a
publication of the Division of Healthcare Quality Promotion in the National Center for Emerging and
Zoonotic Infectious Diseases within CDC and the Education Working Group of the Infection Control
Africa Network.
Centers for Disease Control and Prevention
Robert Redfield, MD, Director
National Center for Emerging and Zoonotic Infectious Diseases
Rima Khabbaz, MD, Director
Division of Healthcare Quality Promotion
Denise Cardo, MD, Director
Infection Control Africa Network
Sade Ogunsola, PhD, Chair
Education Working Group
Shaheen Mehtar, MBBS, Chair (Past Chair ICAN)
Photo Credit:
Cover page photo features Ms. De Bruin, a dedicated and passionate environmental cleaning staff
member for over 40 years at a hospital in Cape Town, South Africa.
Suggested citation:
CDC and ICAN. Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings. Atlanta,
GA: US Department of Health and Human Services, CDC; Cape Town, South Africa: Infection Control Africa Network; 2019.
Available at:
https://www.cdc.gov/hai/prevent/resource-limited/index.html
and
http://www.icanetwork.co.za/icanguideline2019/
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
iii
Acknowledgements
Overall coordination and writing of the best practices:
Molly Patrick (International Infection Control Program, Division of Healthcare Quality Promotion, CDC, Atlanta, Georgia, USA) jointly
coordinated the development and led the writing of the best practices. Shaheen Mehtar (Education Working Group, Infection Control
Africa Network, Cape Town, South Africa) jointly coordinated the development and contributed significantly to the structure and content
of the best practices. Danielle Carter, Joyce Thomas and Sonya Arundar (Division of Healthcare Quality Promotion, CDC) provided
professional editing (plain language and usability) assistance.
Expert Committee:
The following experts participated in technical consultations to guide the development and provided technical review of the best practices:
Benedetta Allegranzi, Nathalie Tremblay (Department of Service Delivery and Safety, World Health Organization (WHO), Switzerland); Margaret
Montgomery (Water, Sanitation, Hygiene and Health Unit, WHO, Switzerland); Claire Kilpatrick (Soapbox Collaborative, UK); Joost Hopman
(Consultant Microbiologist, Radboud University Medical Center, The Netherlands); Nkwan Jacob Gobte (Infection Control Africa Network,
Cameroon); Matt Arduino, Michael Bell, Bryan Christensen, Denise Kirley, Cliff McDonald, Sujan Reddy, Rachel Smith, Amy Valderrama (Division
of Healthcare Quality Promotion, CDC).
External Peer Review Group:
The following experts provided technical expertise on infection prevention and control (IPC) in resource-limited settings: Nizam Damani
(IPC Consultant, WHO and Southern Health & Social Care Trust, UK); Briette du Toit (Infection Prevention and Control Officer, Mediclinic
Southern Africa, South Africa); Nagwa Khamis (CEO Consultant and Head of IPC Department, Children Cancer Hospital of Egypt, Egypt);
Linus Kirimi Ndegwa (Program Manager, IPC/AMR, Division of Global Health Protection, CDC and IPNET-K Secretary General, Kenya);
Robert M Njee (Senior Research Scientist, National Institute for Medical Research, Tanzania); Marcelyn Magwenzi (Microbiologist/
IPC Trainer, Infection Control Association of Zimbabwe, Zimbabwe); Ana Maruta (IPC Team Lead, WHO, Sierra Leone); Apurba S Sastry
(Infection Control Officer, Antimicrobial Stewardship Lead, Associate Professor of Microbiology, Jawaharlal Institute of Postgraduate
Medical Education and Research, India); Yolanda Van Zyl (Infection Control Practitioner/Chairperson Infection Control Society South Africa,
Paarl Hospital, Western Capt Department of Health, South Africa).
TABLE OF CONTENTS
Acknowledgements ........................................................................................................................................................................................................... iii
Abbreviations
.............................................................................................................................................................................................................................viii
Key definitions
.............................................................................................................................................................................................................................. 1
Icon Legends
...................................................................................................................................................................................................................................4
1. Introduction .......................................................................................................................................................................................................................................5
1.1 Environmental transmission of HAIs
.............................................................................................................................................................5
1.2 Environmental cleaning and IPC
......................................................................................................................................................................6
1.3 Environmental cleaning and WASH infrastructure
...........................................................................................................................7
1.4 Basis and evidence for proposed best practices
..............................................................................................................................8
1.5 Purpose and scope of the document
..........................................................................................................................................................8
1.6 Intended audience of the document
............................................................................................................................................................9
1.7 Overview of the document
....................................................................................................................................................................................9
2. Cleaning Programs
................................................................................................................................................................................................................. 11
2.1 Organizational elements
..................................................................................................................................................................................... 12
2.1.1 Administrative support
.................................................................................................................................................................... 12
2.1.2 Communication
..................................................................................................................................................................................... 13
2.1.3 Management and supervision
.................................................................................................................................................. 14
2.2 Staffing elements
...................................................................................................................................................................................................... 15
2.2.1 Staffing levels
.......................................................................................................................................................................................... 15
2.2.2 Training and education
.................................................................................................................................................................... 16
2.3 Supporting infrastructure and supply elements
............................................................................................................................. 17
2.3.1 Designated space
................................................................................................................................................................................ 17
2.3.2 Water and wastewater services
.............................................................................................................................................. 17
2.3.3 Supplies and equipment procurement and management
................................................................................ 19
2.3.4 Finishes, furnishings and other considerations
......................................................................................................... 19
2.4 Policies and procedural elements
.............................................................................................................................................................. 20
2.4.1 Cleaning policies
.................................................................................................................................................................................. 20
2.4.2 Standard operating procedure
................................................................................................................................................. 21
2.4.3 Cleaning checklists, logs, and job aids
............................................................................................................................. 22
vi
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
2.5 Monitoring, feedback and audit elements ...........................................................................................................................................23
2.5.1 Routine monitoring
............................................................................................................................................................................. 24
2.5.2 Feedback mechanisms
................................................................................................................................................................... 25
2.5.3 Program audits
...................................................................................................................................................................................... 26
3. Environmental Cleaning Supplies and Equipment
....................................................................................................................................... 27
3.1 Products for environmental cleaning
....................................................................................................................................................... 27
3.1.1 Cleaning products
............................................................................................................................................................................... 28
3.1.2 Disinfectants
............................................................................................................................................................................................ 28
3.1.3 Combined detergent-disinfectants
....................................................................................................................................... 30
3.2 Preparation of environmental cleaning products
.......................................................................................................................... 31
3.3 Supplies and equipment for environmental cleaning
................................................................................................................ 31
3.3.1 Preparation of supplies and equipment
........................................................................................................................... 33
3.4 Personal protective equipment for environmental cleaning
................................................................................................ 34
3.5 Care and storage of supplies, equipment, and personal protective equipment
................................................. 37
4. Environmental Cleaning Procedures
....................................................................................................................................................................... 41
4.1 General environmental cleaning techniques
..................................................................................................................................... 42
4.2 General patient areas
............................................................................................................................................................................................ 44
4.2.1 Outpatient wards
.................................................................................................................................................................................. 45
4.2.2 Routine cleaning of inpatient wards
.................................................................................................................................... 45
4.2.3 Terminal or discharge cleaning of inpatient wards
................................................................................................. 45
4.2.4 Scheduled cleaning
........................................................................................................................................................................... 46
4.3 Patient area toilets
................................................................................................................................................................................................... 47
4.4 Patient area floors
.................................................................................................................................................................................................... 47
4.5 Spills of blood or body fluids
........................................................................................................................................................................... 48
4.6 Specialized patient areas
................................................................................................................................................................................... 49
4.6.1 Operating rooms
................................................................................................................................................................................... 50
4.6.2 Medication preparation areas
................................................................................................................................................... 52
4.6.3 Sterile service departments (SSD)
........................................................................................................................................ 53
4.6.4 Intensive care units
............................................................................................................................................................................ 54
4.6.5 Emergency departments
............................................................................................................................................................... 54
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
vii
2.5 Monitoring, feedback and audit elements ...........................................................................................................................................23
2.5.1 Routine monitoring
............................................................................................................................................................................. 24
2.5.2 Feedback mechanisms
................................................................................................................................................................... 25
2.5.3 Program audits
...................................................................................................................................................................................... 26
3. Environmental Cleaning Supplies and Equipment
....................................................................................................................................... 27
3.1 Products for environmental cleaning
....................................................................................................................................................... 27
3.1.1 Cleaning products
............................................................................................................................................................................... 28
3.1.2 Disinfectants
............................................................................................................................................................................................ 28
3.1.3 Combined detergent-disinfectants
....................................................................................................................................... 30
3.2 Preparation of environmental cleaning products
.......................................................................................................................... 31
3.3 Supplies and equipment for environmental cleaning
................................................................................................................ 31
3.3.1 Preparation of supplies and equipment
........................................................................................................................... 33
3.4 Personal protective equipment for environmental cleaning
................................................................................................ 34
3.5 Care and storage of supplies, equipment, and personal protective equipment
................................................. 37
4. Environmental Cleaning Procedures
....................................................................................................................................................................... 41
4.1 General environmental cleaning techniques
..................................................................................................................................... 42
4.2 General patient areas
............................................................................................................................................................................................ 44
4.2.1 Outpatient wards
.................................................................................................................................................................................. 45
4.2.2 Routine cleaning of inpatient wards
.................................................................................................................................... 45
4.2.3 Terminal or discharge cleaning of inpatient wards
................................................................................................. 45
4.2.4 Scheduled cleaning
........................................................................................................................................................................... 46
4.3 Patient area toilets
................................................................................................................................................................................................... 47
4.4 Patient area floors
.................................................................................................................................................................................................... 47
4.5 Spills of blood or body fluids
........................................................................................................................................................................... 48
4.6 Specialized patient areas
................................................................................................................................................................................... 49
4.6.1 Operating rooms
................................................................................................................................................................................... 50
4.6.2 Medication preparation areas
................................................................................................................................................... 52
4.6.3 Sterile service departments (SSD)
........................................................................................................................................ 53
4.6.4 Intensive care units
............................................................................................................................................................................ 54
4.6.5 Emergency departments
............................................................................................................................................................... 54
4.6.6 Labor and delivery wards ............................................................................................................................................................. 55
4.6.7 Other specialized areas
.................................................................................................................................................................. 56
4.6.8 Transmission-based precaution / Isolation wards
................................................................................................... 59
4.7 Noncritical patient care equipment
........................................................................................................................................................... 61
4.7.1 Material compatibility considerations
................................................................................................................................. 63
4.7.2 Sluice rooms
............................................................................................................................................................................................ 63
4.8 Methods for assessment of cleaning and cleanliness
.............................................................................................................. 64
5. Conclusion and way forward
.......................................................................................................................................................................................... 67
Further Reading
......................................................................................................................................................................................................................67
References
......................................................................................................................................................................................................................................68
Appendix A – Risk-assessment for determining environmental
cleaning method and frequency
.................................................................................................................................................................71
Appendix B1 – Cleaning procedure summaries for general patient areas
.......................... 73
Appendix B2 – Cleaning procedure summaries for specialized patient areas
.............78
Appendix C – Example of high-touch surfaces in a specialized patient area
................91
Appendix D – Linen and laundry management
..................................................................................................................92
Appendix E – Chlorine disinfectant solution preparation
................................................................................. 94
viii
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Abbreviations
Abbreviation Term
ATP
Adenosine tri-phosphate
CDC
Centers for Disease Control and Prevention
C. diff
Clostridioides difficile
GRADE
Grading of Recommendations, Assessment, Development and Evaluation
HAI
Healthcare-Associated Infections
HEPA
High-Efficiency Particulate Air
ICAN
Infection Control Africa Network
ICU
Intensive Care Unit
IPC
Infection Prevention and Control
MRSA
Methicillin-resistant Staphylococcus aureus
OR
Operating Room
PPE
Personal Protective Equipment
SOP
Standard Operating Procedure
SDS
Safety Data Sheet
UNICEF
United Nations International Children’s Emergency Fund
VRE
Vancomycin-resistant Enterococci
WASH
Water, Sanitation and Hygiene
WASH FIT
Water and Sanitation for Health Facility Improvement Tool
WHO
World Health Organization
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
1
Key definitions
Antiseptic: a substance that prevents or arrests the growth or action of microorganisms by inhibiting their activity or by destroying
them. The term is used especially for preparations applied topically to living tissue.
Automatic dispensing system: systems that provide computer controls (automation) for preparation of cleaning or disinfectant
solutions. These systems replace the need for manually measuring a quantity of cleaning or disinfectant products and water.
Chemical-resistant gloves: gloves that protect the hands from chemicals. They can be made latex or another manufactured
material, such as nitrile, and can be water- or liquid-proof.
Chemical sterilant: an agent that is applied to inanimate objects or heat-sensitive devices to kill all microorganisms and
bacterial spores.
Cleaning: the physical removal of foreign material (e.g., dust, soil) and organic material (e.g., blood, secretions, excretions,
microorganisms). Cleaning physically removes rather than kills microorganisms. It is accomplished with water, detergents, and
mechanical action.
Cleaning cart (also known as cleaning trolley): a dedicated cart or trolley that carries environmental cleaning supplies and
equipment, in addition to bags or bins for soiled materials, such as laundry, for disposal or reprocessing.
Cleaning products (also known as cleaning agents): liquids, powders, sprays, or granules that remove organic material (e.g.,
dirt, body fluids) from surfaces and suspend grease or oil. Can include liquid soap, enzymatic cleaners, and detergents.
Cleaning session: a continuous environmental cleaning activity performed over a defined time period in defined patient care
areas. A cleaning session could include routine or terminal cleaning.
Cleaning solution: a combination of water and cleaning product (e.g., detergent) in a ratio specified by the manufacturer.
Contact time: the time that a disinfectant must be in contact with a surface or device to ensure that appropriate disinfection has
occurred. For most disinfectants, the surface should remain wet for the required contact time.
Contamination: the presence of any potentially infectious agent on environmental surfaces, clothing, bedding, surgical
instruments or dressings, or other inanimate articles or substances, including water, medications, and food.
Critical patient care equipment: equipment and devices that enter sterile tissue or the vascular system, such as surgical
instruments, cardiac and urinary catheters.
Detergent: a synthetic cleansing agent that can emulsify and suspend oil. Contains surfactant or a mixture of surfactants with
cleaning properties in dilute solutions to lower surface tension and aid in the removal of organic soil and oils, fats, and greases.
Disinfectant fogging: misting or fogging a liquid chemical disinfectant to disinfect environmental surfaces in an enclosed space.
Disinfection: a thermal or chemical process for inactivating microorganisms on inanimate objects.
Disinfectants: Chemical compounds that inactivate (i.e., kill) pathogens and other microbes and fall into one of three categories
based on chemical formulation: low-level, mid-level, and high-level. Disinfectants are applied only to inanimate objects. All organic
material and soil must be removed by a cleaning product before application of disinfectants. Some products combine a cleaner
with a disinfectant.
2
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Disinfectant solution: a combination of water and disinfectant, in a ratio specified by the manufacturer.
Dry sweeping: using a broom to clean dry floors.
Dry mopping: using a dry mop to clean dry floors.
Environmental cleaning: cleaning and disinfection (when needed, according to risk level) of environmental surfaces (e.g., bed
rails, mattresses, call buttons, chairs) and surfaces of noncritical patient care equipment (e.g., IV poles, stethoscopes).
Focal person: a person who serves as a coordinator or focal point of information concerning an activity or program.
General patient areas: outpatient or ambulatory care wards and inpatient wards with patients admitted for routine medical
procedures who are not receiving acute care (i.e., sudden, urgent or emergent episodes of injury and illness that require
rapid intervention).
Hand hygiene: any action of hand cleansing to physically or mechanically remove dirt, organic material or microorganisms.
Hemodialysis station: a hemodialysis machine with a chair or bed and connections to purified water and sanitary sewer. Stations
in facilities with central delivery can also have acid concentrate and bicarb concentrate connections.
High-level disinfection: kills all microorganisms, with the exception of small numbers of bacterial spores.
High-touch surfaces: surfaces, often in patient care areas, that are frequently touched by healthcare workers and patients (e.g.,
bedrails, overbed table, IV pole, door knobs, medication carts).
Environmental cleaning services area: a dedicated space for preparing, reprocessing, and storing clean or new
environmental cleaning supplies and equipment, including cleaning products and PPE. Access is restricted to cleaning staff
and authorized personnel.
Incubator (also known as isolette): a self-contained unit that provides a controlled heat, humidity, and oxygen
microenvironment for the isolation and care of premature and low-birth weight neonates.
Low-level disinfection: inactivates most vegetative bacteria, some fungi, and some viruses in a practical contact time, but does
not kill more hardy viruses (e.g. non-enveloped), bacterial genus (e.g. mycobacteria), or bacterial spores.
Low-touch surfaces: surfaces that are minimally touched by healthcare workers and patients (e.g., walls, ceilings, floors).
Material compatibility: the chemical compatibility and other factors that affect corrosion, distortion, or other damage
to materials.
Mechanical action: the physical action of cleaning—includes rubbing, scrubbing, and friction.
Microfiber cloths: cloths made from a tightly woven combination of polyester and polyamide (nylon) fibers.
Mid-level disinfection (also intermediate-level disinfection): kills inactivate vegetative bacteria, including mycobacteria, most
viruses, and most fungi, but might not kill bacterial spores.
Multidrug-resistant organisms (MDRO) and pathogens: germs (viruses, bacteria, and fungi) that develop the ability to
defeat the drugs designed to kill them. Typically refers to an isolate that is resistant to at least one antibiotic in three or more
drug classes.
Noncritical patient care equipment: equipment, such as stethoscopes, blood pressure cuffs and bedpans, that comes into
contact with intact skin.
Patient care areas: any area where patient care is directly (e.g., examination room) and indirectly (e.g., medication preparation
area) provided. Includes the surrounding healthcare environment (e.g., patient toilets).
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
3
Patient zone: the patient and his or her immediate surroundings. Includes all surfaces that are temporarily and exclusively
designated for that patient.
Personal protective equipment (PPE): clothing or equipment worn by staff to protect themselves against hazards (e.g., blood
or body fluids).
Private vs. shared toilets: private toilets are dedicated to one person over a specified time period—environmental cleaning
always takes place before their use by a different person. Shared toilets are used by more than one person within a specified time
period and might not be cleaned before use by a different person.
Reprocess: the process of cleaning and disinfecting a device or piece of equipment for reuse on the same patient (e.g.,
hemodialyzers) or other patients.
Resource-limited settings: settings with insufficient individual or societal resources—human, financial, or technological—to
support a robust public healthcare system.
Reusable rubber gloves (also referred to as domestic gloves or household gloves): gloves that protect the hands from
liquids, including cleaning or disinfectant solutions, and chemicals. They are stronger (more durable) than disposable
(single-use) latex gloves.
Routine cleaning: the regular cleaning (and disinfection, when indicated) when the room is occupied to remove organic material,
reduce microbial contamination, and provide a visually clean environment. Emphasis is on surfaces within the patient zone.
Safety data sheet (SDS): a document by the supplier or manufacturer of a chemical product that contains information on the
product’s potential hazards (health, fire, reactivity, and environmental) and how to work safely with it. It also contains information
on the use, storage, handling, and emergency procedures.
Scheduled cleaning: cleaning (and disinfection, when indicated) that occurs concurrently with routine cleaning and aims to
reduce dust and soiling on low-touch surfaces.
Semi-critical patient care equipment: equipment, such as endoscopes, respiratory and anesthesia equipment, and vaginal
ultrasound probes, that comes into contact with mucus membranes.
Sluice room: a dedicated room or area, separated into dirty and clean areas, where noncritical patient care equipment is
reprocessed. Access is restricted to cleaning staff and authorized personnel.
Specialized patient areas: inpatient wards or units (e.g., medication preparation areas) for high-dependency patients (e.g.,
ICUs), immunosuppressed patients (e.g., bone marrow transplant, chemotherapy), patients undergoing invasive procedures (e.g.,
operating rooms), or those who are regularly exposed to blood or body fluids (e.g., labor and delivery ward, burn units).
Standard Precautions: are used for all patient care. Based on a risk assessment and make use of common sense practices and
personal protective and other equipment that protects healthcare providers from infection and prevent the spread of infection from
patient to patient.
Surgical field: includes the patient zone in the operating rooms where asepsis is required. Only sterile objects and personnel are
allowed in the surgical field.
Terminal (discharge) cleaning: cleaning and disinfection after the patient is discharged or transferred. Includes the removal of
organic material and significant reduction and elimination of microbial contamination.
Three-bucket system (mopping): floor mopping system for cleaning and disinfection. One bucket contains a detergent or
cleaning solution, the second bucket contains disinfectant or disinfectant solution, and the third bucket contains clean water for
rinsing the mop.
4
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Transmission-Based Precautions: are used in addition to Standard Precautions for patients with known or suspected infections.
There are three categories:
Contact: intended to prevent transmission of infectious agents, including epidemiologically important microorganisms,
that are spread by direct or indirect contact with the patient or the patient’s environment
Droplet: intended to prevent transmission of pathogens spread through close respiratory or mucous membrane contact
with respiratory secretions
Airborne: intended to prevent transmission of infectious agents that remain infectious over long distances when
suspended in the air (e.g., rubeola virus [measles], varicella virus [chickenpox], M. tuberculosis, and possibly SARS-CoV)
For some diseases that have multiple routes of transmission (e.g., SARS), more than one Transmission-Based Precautions
category can be used.
Transport equipment: wheelchairs, trolleys, stretchers, and other portable equipment used to transport patients.
Two-bucket system (mopping): floor mopping system for cleaning only (not disinfection). One bucket contains a detergent or
cleaning solution and the second bucket contains clean water for rinsing the mop.
Washer-disinfector: a machine used to clean and disinfect reusable patient care equipment (e.g., bedpans, urine bottles and
bowls) and pre-clean reusable minor surgical instruments before sterilization.
Icon Legends
Represents a section where particular attention should be paid to content
Represents an essential person or persons to implement environmental cleaning
Represents content that applies to the situation where environmental cleaning services
are provided by an external company (i.e., by a contract or service level agreement)
Represents an area where checklists and other job aids are required to implement
environmental cleaning
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
5
1. Introduction
Healthcare-associated infections (HAI) are a significant burden globally, with millions of patients affected each year.
1
These
infections affect both high- and limited-resource healthcare settings, but in limited-resource settings, rates are approximately
twice as high (15 out of every 100 patients versus 7 out of every 100 patients). Furthermore, infection rates within certain patient
populations, including surgical patients, patients in intensive-care units (ICU) and neonatal units, are significantly higher in limited-
resource settings.
It is well documented that environmental contamination in healthcare settings plays a role in the transmission of HAIs.
2,3
Therefore, environmental cleaning is a fundamental intervention for infection prevention and control (IPC). It is a multifaceted
intervention that involves cleaning and disinfection (when indicated) of the environment alongside other key program elements
(e.g., leadership support, training, monitoring, and feedback mechanisms).
To be effective, environmental cleaning activities must be implemented within the framework of the facility IPC program,
and not as a standalone intervention. It is also essential that IPC programs advocate for and work with facility administration and
government officials to budget, and operate and maintain adequate water, sanitation, and hygiene (WASH) infrastructure to ensure
that environmental cleaning can be performed according to best practices.
1.1 Environmental transmission of HAIs
In a variety of healthcare settings, environmental contamination has been significantly associated with transmission of
pathogens in major outbreaks of methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci
(VRE), Clostridioides difficile (C.diff), and more recently in protracted outbreaks of Acinetobacter baumannii. Outbreak
investigations have determined that the risk of patient colonization and infection increased significantly if the patient
occupied a room that had been previously occupied by an infected or colonized patient. Therefore, the role of immediate
patient care environment—particularly, environmental surfaces within the patient zone that are frequently touched
by or in direct physical contact with the patient such as bed rails, bedside tables and chairs—in facilitating survival
and subsequent transfer of microorganisms was established.
4-10
However, it is important to note that environmental
transmission of HAIs can occur by different pathways.
It has also been documented that some healthcare-associated pathogens can survive on environmental surfaces for
months.
3
In 2006, a laboratory-based study documented the survival times of a range of significant healthcare-associated
pathogens, including gram-negative bacilli, and found that they could persist much longer in the environment than was
previously understood. For example, Acinetobacter spp. survived up to 5 months and Klebsiella spp. up to 30 months.
11-12
The actual survival times in healthcare settings vary considerably based on factors such as temperature, humidity,
and surface type.
6
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Figure 1 (below) illustrates the environmental transmission pathway in general terms. Microorganisms are transferred
from the environment to a susceptible host through:
contact with contaminated environmental surfaces and noncritical equipment
contact with contaminated hands or gloves of healthcare workers during the provision of care, as well as by caretakers
and visitors
Contaminated hands or gloves will also continue to spread microorganisms around the environment. Figure 1 also shows
how these pathways can be broken and highlights that environmental cleaning and hand hygiene (preceded by glove
removal, as applicable) can break this chain of transmission.
Figure 1. Contact transmission pathway showing role of environmental surfaces, role of
environmental cleaning, and hand hygiene in breaking the chain of transmission
A colonized or infected patient can contaminate environmental surfaces and noncritical equipment. Microorganisms
from these contaminated environmental surfaces and noncritical equipment can be transferred to a susceptible patient
in two ways:
If the susceptible patient makes contact with the contaminated surfaces directly (e.g., touches them).
If a healthcare personnel, caretaker, or visitor makes contact with the contaminated surfaces and then transfers the
microorganisms to the susceptible patient.
Contaminated hands or gloves of healthcare personnel, caretakers and visitors can also contaminate environmental
surfaces in this way. Proper hand hygiene and environmental cleaning can prevent transfer of microorganisms to
healthcare personnel, caretakers, and visitors and to susceptible patients.
Evidence is increasing but remains limited that effective environmental cleaning strategies reduce the risk of transmission
and contribute to outbreak control.
7, 13-22
Consequently, the use of multiple (i.e., a bundle) interventions as well as an
overall multi-modal approach to IPC activities and programs is recommended, for both the outbreak and routine setting.
1.2 Environmental cleaning and IPC
Environmental cleaning is part of Standard Precautions, which should be applied to all patients in all healthcare facilities.
It is important to implement environmental cleaning programs within the framework of facility level IPC programs.
Where possible—during staff training and education, for example—consider generating synergies and highlighting the
relationship between environmental cleaning and hand hygiene activities in preventing environmental transmission of HAIs.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
7
Facility level IPC programs include multiple elements, ranging from surveillance for HAIs to training and education for
all healthcare workers on IPC. The World Health Organization (WHO) has defined core components of IPC programs in
Guidelines on core components of infection prevention and control programmes at the national and acute health care
facility level
(https://www.who.int/gpsc/ipc-components/en/).
Environmental cleaning is addressed explicitly within Core Component 8: Built environment, materials and equipment for
IPC at the facility level.
But other components include important aspects for the implementation of environmental cleaning as well, such as:
Core Component 2: IPC guidelines
Core Component 3: IPC education and training
Core Component 6: Monitoring/audit of IPC practices and feedback
At the national level, it is important that these Core Components (2, 3 and 6) include frameworks and guidance to inform
facility level approaches to environmental cleaning.
Given the wide range of IPC responsibilities at acute healthcare facilities, implementation of robust IPC programs
requires a dedicated, trained IPC team (or at least a focal person). The IPC team should consult and be involved in
the technical aspects of environmental cleaning program (e.g., training, policy development). A separate team is
recommended for the overall management and implementation of the environmental cleaning program. In small primary
care facilities with limited inpatient services, the IPC team or focal person might be directly responsible for managing
environmental cleaning activities.
1.3 Environmental cleaning and WASH infrastructure
Healthcare facilities must have adequate water supply and sanitation infrastructure (e.g., safe wastewater disposal) to
perform environmental cleaning according to best practices. A recent global report summarized the critical lack of access
to basic water, sanitation, and hygiene (WASH) services in healthcare facilities in resource-limited settings, which
hinders the ability of facilities to implement effective environmental cleaning programs.
23
In response to the identified need to improve WASH in Healthcare facilities, WHO and UNICEF have engaged partners and
proposed practical steps to improve WASH services. Notably, this includes using and reporting on:
harmonized monitoring indicators for the Sustainable Development Goals:
Healthcare Facilities
, Joint Monitoring
Programme (JMP) (https://washdata.org/monitoring/health-care-facilities)
a facility improvement tool to assist incremental improvements to WASH services:
Water and Sanitation for Health
Facility Improvement Tool ((WASH FIT)): a practical guide for improving quality of care through water, sanitation and
hygiene in healthcare facilities
(https://www.who.int/water_sanitation_health/publications/water-and-sanitation-for-
health-facility-improvement-tool/en/)
eight recommended practical steps that provide a roadmap for country improvement in the long term and align with
the 2019 World Health Assembly Resolution on WASH in healthcare facilities:
WHO | WASH in health care facilities
(https://www.who.int/water_sanitation_health/publications/wash-in-health-care-facilities/en/)
8
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
1.4 Basis and evidence for proposed best practices
The following best practices for environmental cleaning in resource-limited settings are proposed as a standard
reference and a resource to:
supplement existing guidelines
inform the development of guidelines where needed
elevate the attention to this critical and under-resourced aspect of healthcare and patient safety
These best practices are derived directly from a variety of best practices and cleaning standard documents from
several English-speaking high-resource settings, most notably, the United States of America, Canada, the United
Kingdom, and Australia. These documents have been generated by a combination of expert opinion and ranking of
the current evidence. See
Further reading
(page 67) for a list of the documents that have been used extensively in the
development of these best practices.
These best practices were developed by a committee of experts in environmental cleaning in resource-limited
settings. Using a consensus-driven process, we have included the best practices most relevant and achievable for
the target context.
For example, the best practices in ICUs in this document include more frequent environmental cleaning than
recommended in several of the referenced documents because of the increased HAI risk and burden in ICUs in resource-
limited settings. Alternatively, the use of no-touch and novel disinfection devices, which are increasingly common in
high-resource settings, were excluded from this document because of their prohibitive cost and limited evidence on their
effectiveness in reducing HAIs in resource-limited settings.
This is a living document that will be updated and improved as new evidence becomes available.
1.5 Purpose and scope of the document
The purpose of these best practices is to improve and standardize the implementation of environmental cleaning in patient
care areas in all healthcare facilities in resource-limited settings.
The following are outside of the scope of this document:
Cleaning procedures outside of patient care areas, such as offices and administrative areas
Cleaning of the environment external to the facility buildings (e.g., waste storage areas, ambulances
and facility grounds)
Decontamination and reprocessing of semi-critical and critical equipment
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
9
1.6 Intended audience of the document
This document is intended for healthcare facility staff who have a role in the development, management, or oversight of
environmental cleaning services (internal or contracted) for the healthcare facility.
Primary audience:
Full- or part-time cleaning managers, cleaning supervisors, or other clinical staff who assist with
environmental cleaning program development and implementation, such as members of existing
infection control or hygiene committees.
Secondary audience:
Other staff who assure a clean patient-care environment, such as supervisors of wards or
departments, midwives, nursing staff, administrators, procurement staff, facilities management, and
any others responsible for WASH or IPC services at the healthcare facility.
1.7 Overview of the document
The best practices are divided into three chapters, described below and relationally in
Figure 2
(page 10).
Chapter 2: Environmental Cleaning Programs
An environmental cleaning program is a structured set of elements or interventions which facilitate implementation of
environmental cleaning at a healthcare facility.
Environmental cleaning programs require a standardized and multi-modal approach and strong management and
engagement from multiple stakeholders and departments of the healthcare facility, such as administration, IPC, WASH
or facilities management.
This chapter provides the best practices for implementing environmental cleaning programs for all program
mechanisms (managed in-house or contracted), including the key program elements of:
Ð organization/administration
Ð staffing and training
Ð infrastructure and supplies
Ð policies and procedures
Ð monitoring, feedback and audit
Chapter 3: Environmental Cleaning Supplies and Equipment
The selection and appropriate use of supplies and equipment is critical for effective environmental cleaning in patient
care areas.
This chapter provides overall best practices for selection, preparation, and care of environmental cleaning supplies and
equipment, including:
Ð cleaning and disinfectant products
Ð reusable and disposable supplies
Ð cleaning equipment
Ð personal protective equipment (PPE) for the cleaning staff
10
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Chapter 4: Environmental Cleaning Procedures
It is critical to develop and implement standard operating procedures (SOP) for patient care areas.
This chapter provides:
Ð the overall strategies and techniques for conducting environmental cleaning according to best practice based
on risk assessment
Best practices for the frequency, method, and process for every major area in healthcare settings to help users develop
tailored SOPs for all patient care areas in their facility, including:
Ð outpatient
Ð general inpatient
Ð specialized patient areas
Figure 2. Framework for the best practices – by chapter
Organizational
Elements
Staffing and
Training
Chapter 2: Cleaning Programs
Chapter 3: Supplies and equipment
• Products for environmental cleaning
• Supplies and equipment for environmental
cleaning
• Personal protective equipment for
environmental cleaning
• Care and storage of supplies, equipment,
and personal protective equipment
Chapter 4: Procedures
• General environmental cleaning
techniques
• General patient areas
• Patient area toilets
• Patient care area floors
• Spills of blood or body fluids
• Specialized patient areas
• Noncritical patient care equipment
• Methods for assessment of cleaning
and cleanliness
Infrastructure
and supplies
Policies and
procedures
Monitoring,
feedback
and audit
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
11
2. Cleaning Programs
Environmental cleaning programs in healthcare facilities involve resources and engagement from multiple stakeholders and
departments, such as administration, IPC, WASH, and facilities management. They require a standardized and multi-modal
approach, as well as strong management and oversight, to be implemented effectively.
The scope of the environmental cleaning program and its implementation can vary (e.g., in-house management versus external
contract), based on the size of the facility and level of services provided. Comprehensive environmental cleaning programs are
most important at acute healthcare facilities and higher tiers of healthcare, where the burden of HAIs is highest.
Regardless of type of facility, the key program elements for effective environmental cleaning programs include:
organization/administration
staffing and training
infrastructure and supplies
policies and procedures
monitoring, feedback and audit
This chapter describes the best practices for each of these key program elements.
Externally Contracted Programs
Environmental cleaning programs are increasingly implemented by external companies through a contract
or service level agreement. Contracted staff, including cleaning staff and cleaning supervisors, should work
closely with the environmental cleaning program focal person and IPC staff at the facility to ensure that
environmental cleaning is performed according to best practices and facility policy.
It is essential that all the standard program elements be described explicitly in the service level
agreement with the external company, to ensure accountability.
In general, the components of the service level agreement should be similar to the facility cleaning policy,
and at a minimum should include:
an organizational chart for all contracted employees, including functional reporting lines
and responsibilities
the staffing plan for each patient care area, including contingency plans for additional staff
the training content and frequency for contracted employees
a summary of the cleaning schedules and methods for each patient care area, in line with the
facility policy
the methods for routine monitoring and feedback
the supplies and equipment to be used
12
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
2.1 Organizational elements
Facility-level organizational support is a key program element in the implementation of an effective environmental cleaning
program. The main areas of support include:
administrative and leadership support
formalized communication processes and integration of the cleaning program and IPC
defined management structure
2.1.1 Administrative Support
Required support from the healthcare facility administration for the environmental cleaning program includes
a designated cleaning program manager or focal person.
Designated cleaning program manager or focal person
A facility staff member or manager who acts as a focal person is essential to an effective
environmental cleaning program.
This focal person is essential regardless of whether the program is managed internally or by an
external company.
The focal person can be part-time or full-time:
A full-time cleaning program manager may be best for in-house managed programs, especially
at secondary or tertiary care facilities.
The focal person should have a written job description/terms of reference, along with salary
allocation, to cleaning program activities.
Specific responsibilities include:
Developing the facility-specific environmental cleaning policy and corresponding service level
agreement or contract (as applicable).
Developing and maintaining a manual of standard operating procedures for all required cleaning
tasks at the facility.
Ensuring that structured training activities are carried out for all new staff and on a
recurring basis.
Ensuring that routine monitoring is implemented and results are used for
program improvement.
Ensuring that cleaning supplies and equipment are available in required quantities and in good
condition (i.e., preventing stock-outs).
Addressing staff concerns and patient questions about the cleaning program.
Communicating with the external company on any of the program elements (if applicable).
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
13
Leadership validation of cleaning program policy
The ultimate responsibility for the environmental cleaning program lies at the facility leadership level.
Engage leadership on the development and validation of the facility cleaning policy and service
level agreement (if contracted services are used), both of which outline the key technical and
programmatic elements (e.g., monitoring and training requirements) of the program. See
Cleaning policies
(page 20).
Annual budget
An annual budget is essential to an effective environmental cleaning program. The major elements of
a budget include:
personnel (salary and benefits for cleaning staff, supervisors, and an overall program manager)
staff training (at least pre-service and annual refresher)
environmental cleaning supplies and equipment, including PPE for cleaning staff
equipment for program monitoring (e.g., fluorescent markers, UV-lights)
administrative costs
production and printing costs for checklists, logs, and other job aids
infrastructure/services costs, such as supporting water and wastewater services (as applicable)
2.1.2 Communication
An effective environmental cleaning program requires strong communication and collaboration across multiple
levels of the facility, at both the program development and implementation stages. Strong communication
systems also improve understanding of the importance of environmental cleaning for IPC and patient safety
among all clinical staff. The primary communication structures to establish include:
multi-sectorial planning committee
routine meetings with key stakeholders
Multi-sectorial planning committee
A multi-sectorial planning committee engages all facility stakeholders during the development of policy,
procedures, and (if contracted services are used) service level agreements.
The planning committee could include:
a representative from the IPC committee
a clinical staff representative from each ward (e.g., nurse in-charge)
facilities management or WASH staff
administrative staff in charge of procurement
14
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Routine meetings with key stakeholders
Routine meetings with key stakeholders, particularly those representing IPC facilitate regular
communication between the cleaning program manager, IPC, and other stakeholders at the
facility (e.g., ward in-charge staff).
These meetings should be conducted at least monthly with:
The cleaning program manager and the IPC or hygiene committee to review and update
technical aspects of the program (e.g., outbreak-related changes in cleaning). Rather than
a separate meeting, this could be best accomplished by the cleaning program manager
participating in standing IPC or hygiene committee meetings.
The cleaning program manager and person in-charge for each ward or department to
inform ward-level staff of the overall cleaning policy and specific cleaning schedules
(e.g., who cleans what) for their wards and to allow feedback from the ward staff on any
deficiencies in cleaning procedures, cleaning staff, or supplies.
The cleaning program manager and the external company should have a monthly meeting to
review performance and report deficiencies.
2.1.3 Management and supervision
An effective environmental cleaning program requires a defined management structure, including
organizational and reporting lines, and on-site supervision. The required elements include:
cleaning program organizational chart
on-site supervisors
Cleaning program organizational chart
An organizational chart outlines the functional reporting lines between cleaning staff, supervisors, manager,
and any other direct or indirect relationships (e.g., to the facility IPC focal person, to ward in-charge staff).
If supervisors are from an external company, include a functional reporting line from supervisors
to the facility cleaning program manager or focal person who can communicate with the IPC
committee and other facility staff, such as facilities management and administrative staff.
On-Site Supervisors
On-site supervision of cleaning staff ensures:
compliance to best practices through direct monitoring and feedback
consistent availability of cleaning supplies and equipment
On-site supervision also allows cleaning staff to communicate any challenges or concerns about
compliance (e.g., supply shortage, safety concerns).
All cleaning staff should know to whom they report and who they can contact if any issues arise
during their work.
Supervisor-cleaner ratios should allow routine performance observations and monitoring (e.g., on
a weekly basis). There is no definitive benchmark for this ratio, which will vary based on a number
of factors. An upper limit of 20 cleaning staff per supervisor might be recommended. See PIDAC,
2018 in
Further reading
(page 67).
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
15
2.2 Staffing elements
Appropriate number of staff (staffing levels) and training and education are key program elements.
Cleaning staff should always be paid positions that have:
written job descriptions or terms of reference
structured, targeted training (e.g., pre-service, annual, when new equipment is introduced)
defined performance standards or competencies
access to an on-site supervisor to ensure they can safely perform their work (e.g., address supply shortage,
safety concerns)
According to best practices, cleaning staff should:
be familiar with their job descriptions and performance standards
perform duties only for which they were trained (e.g., cleaning staff should not be asked to clean high-risk wards (e.g.,
operating room), unless they have received specific training for that patient care area)
know the identities and hazards of the chemicals that they could be exposed to in the workplace
have supplies and equipment, including PPE, to perform their duties
have working shifts consistent with acceptable norms for the given context
2.2.1 Staffing levels
Adequate staffing is one of the most important factors for an effective environmental cleaning program.
In small primary care facilities with limited inpatient services, cleaning staff might be part-time
positions or have other responsibilities, such as laundry services, but most hospitals require full-time,
dedicated cleaning staff.
Determining adequate staffing levels
The required number of cleaning staff will vary based on several of factors, including:
number of patient beds
occupancy level
type of cleaning (e.g., routine or terminal)
types of patient care areas (e.g., specialized care areas such as ICUs and ORs)
Staffing levels should include consideration of reasonable shift length, and the need for
breaks, as well as extra staff for contingencies, such as outbreaks and other emergencies.
There are a variety of methods for estimating staffing needs, ranging from time studies to
workload software, but there is no one single best-practice method.
Facilities should consult available expertise to determine resources (e.g., workload software)
and existing data (e.g., from other similar facilities) for estimating their cleaning staff needs.
In the absence of existing data, staffing levels should be estimated empirically, based on
performing cleaning according to facility policy, and refined over time. See
Policies and
procedural elements
(page 20).
16
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
2.2.2 Training and education
Training for cleaning staff should be based on national or facility environmental cleaning guidelines and
policies. It should be mandatory, structured, targeted, and delivered in the right style (e.g., participatory)
and conducted before staff can work independently within the healthcare facility.
Training content should include, at a minimum:
Ð general introduction to the principles of IPC, including:
x transmission of pathogens
x the key role cleaning staff play in keeping patients, staff and visitors safe
x how cleaning staff can protect themselves from pathogens
Ð detailed review of the specific environmental cleaning tasks for which they are responsible,
including review of SOPs, checklists, and other job aids
Ð when and how to safely prepare and use different detergents, disinfectants, and cleaning solutions
Ð how to prepare, use, reprocess, and store cleaning supplies and equipment (including PPE)
Ð participatory training methods, hands-on component with demonstration and practice
Ð easy-to-use visual reminders that show the cleaning procedures (i.e., without the need for a
lot of reading)
Ð orientation to the facility layout and key areas for the cleaning program (e.g., environmental
cleaning services areas)
Ð other health and safety aspects, as appropriate
Develop the training program according to the intended audience, in terms of education and
literacy level.
Develop training content specifically for cleaning staff who could be responsible for cleaning
procedures in specialized patient areas—particularly high-risk areas, such as intensive care units,
operating rooms, and maternity units.
Maintain training records, including dates, training content, and names of trainers and trainees.
Select appropriate, qualified trainers at a facility or district level—generally, staff with IPC training
who have been involved in the development of environmental cleaning policy are best qualified. They
could be members of existing IPC or hygiene committees, the cleaning program manager, or local or
district-level Ministry of Health staff.
Conduct periodic competency assessments and refresher trainings as needed (e.g., at least annually,
before introduction of new environmental cleaning supplies or equipment).
Ð Focus refresher trainings on gaps identified during competency assessments and routine
monitoring activities.
If cleaning services are contracted out, the training requirements and content should be
specified in the service level agreement.
Promptly address supplemental training needs identified by facility staff (e.g., cleaning
program manager) within the scope of the contract.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
17
2.3 Supporting infrastructure and supply elements
The facility infrastructure is critical for an effective environmental cleaning program. The main areas of needed
infrastructure include
a
:
designated physical space
access to adequate water and wastewater services/systems
systems to procure and manage environmental cleaning supplies and equipment
appropriate selection of finishes, furnishings and patient care equipment
These areas must be available within the facility itself, regardless of whether the program
is managed in-house or by an external company.
The recommended layout and location of these areas according to best practices are included in
Care and storage of supplies, equipment, and personal protective equipment
(page 37) and
Sluice rooms
(page 63), respectively.
2.3.2 Water and wastewater services
Environmental cleaning requires large quantities of water and produces almost as much wastewater,
which must be disposed of safely and appropriately to prevent contamination of the environment and
surrounding community.
The Water and Sanitation for Health Facility Improvement Tool (WASH FIT) facilitates a comprehensive
process to assess, prioritize, and improve basic water, sanitation, and hygiene services at healthcare
facilities according to the defined indicators. See
Environmental cleaning and WASH
(page 7). Table 1
(below) uses these indicators to describe, the additional water and wastewater services needed to perform
environmental cleaning according to best practices.
These services must be available within the facility itself, regardless of whether the program is
managed in-house or by an external company.
a
Many of the supporting infrastructure and supply elements needed for environmental cleaning programs are also addressed within the Facility
level assessment tool (IPCAF) from
WHO | Core components for IPC - Implementation tools and resources
(https://www.who.int/infection-
prevention/tools/core-components/en/) and the
WHO publication Minimum requirements for infection prevention and control in health care
facilities
(https://www.who.int/infection-prevention/tools/core-components/en/).
2.3.1 Designated space
For the implementation of effective environmental cleaning programs, it’s important that the facility has:
designated physical space for storage, preparation, and care of cleaning supplies and equipment
separated sluice rooms or areas (soiled and clean) for reprocessing of noncritical patient care equipment
18
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Table 1. Water, sanitation, and hygiene services needed for environmental cleaning programs,
expanded from WASH FIT indicators
WHO WASH FIT Indicator Elements needed for environmental cleaning programs
Improved water supply piped into the facility
or on premises and available (i.e., functional)
Access to an improved water source on premises will generally meet the water
quality needs for environmental cleaning.
Water for cleaning does not need to be potable or treated to drinking water
standards, but it is important that the water is free from turbidity (i.e.,
cloudiness due to suspended particles or dirt) because this can reduce the
effectiveness of detergents and disinfectant solutions.
Note: some non-turbid waters can have higher organic content, so when
using chlorine as a disinfectant, monitor the concentration to ensure the target
was reached.
Water services are available at all times and
of sufficient quantity for all uses
Water supply should be continuously available from the water source or on-site
storage and the available daily quantity (i.e., yield) should be sufficient to meet
the cleaning needs of the facility.
b
All endpoints (i.e., taps) are connected to
an available and functioning water supply
Access points (piped to taps, or within large water storage containers) should
be available inside the facility in designated environmental cleaning services
areas and sluice areas.
For large facilities, there should be a functional tap available in these areas on
every floor and every major ward or wing of the facility.
Functioning hand hygiene stations are available in
service areas
c
and points of care
Cleaning staff should have access to dedicated hand hygiene stations (i.e., not
used for cleaning of equipment), with soap and water before and after:
• cleaning and disinfectant solution preparation
• equipment reprocessing
• performing environmental cleaning in patient care areas
• donning and doffing personal protective equipment (PPE)
Graywater (i.e. rainwater or wash water) drainage
system diverts water away from the facility (i.e. no
standing water) and also protects nearby households
Utility sinks or drains (i.e., not sinks used for hand hygiene) should be
available inside the facility in designated environmental cleaning services
areas and sluice areas.
Drains should lead either to on-site wastewater systems (e.g., soakaway
system) or to a functioning sewer system.
b
WHO Essential Environmental Health Standards for Healthcare Facilities have defined quantities of water for specific services, including cleaning (e.g., 40-60L per general
inpatient per day). However, facilities should determine this amount at a facility level because it will vary depending on a number of factors (e.g., level of dilution required for
cleaning and disinfectant products).
c
For the purpose of environmental cleaning, “service areas” are the environmental cleaning services area and sluice areas.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
19
2.3.3 Supplies and equipment procurement and management
The selection and appropriate use of environmental cleaning supplies and equipment is critical for effective
environmental cleaning programs. These aspects are covered in
Environmental Cleaning Supplies and
Equipment
(page 27).
To prevent stock-outs, it is important to effectively manage the procurement, upkeep, and maintenance
of environmental cleaning supplies and equipment. This requires establishing systems and processes in
multiple departments within the facility.
If an external company manages the cleaning program, the contract or service level agreement
should include:
approved environmental cleaning products and supplies
equipment specifications
maintenance schedule
The best practices for supplies and equipment management for in-house managed programs are as follows:
A master list of the supplies and equipment (i.e., detailed specifications and supplier information) and
required quantities (e.g., annual basis) developed by the cleaning program manager, facility procurement
team and facility IPC or hygiene committee.
The results of routine inspections and maintenance activities should determine the required quantities of
supplies and equipment.
Regular (e.g. monthly) inventories and inspections of supplies and equipment will:
Ð prevent stock-outs
Ð anticipate supply needs
Ð ensure availability of additional materials for contingencies such as outbreaks
Large facilities might have a central store that receives supplies and equipment after inventory reports and
distributes them to designated environmental cleaning services areas throughout the facility on a regular
basis.
Ð The cleaning program manager should manage the inspections and restocking of the environmental
cleaning services areas.
Ð The facility procurement team should manage supplies at the central store.
2.3.4 Finishes, furnishings and other considerations
It’s important to ensure that all finishes, furniture, and patient care equipment can be effectively cleaned
and are compatible with the facility disinfectant(s). The facility procurement team, the cleaning program
manager, and the IPC or hygiene committee should collaboratively develop a decision-making process and
policy to guide selection and procurement and selection of finishes (e.g., flooring for new construction of
patient care areas).
The recommended characteristics for finishes and furniture are summarized in Table 2 (below). For direct
patient care equipment, there are often fewer options for material composition. Therefore, finding compatible
disinfectants could be the main driver rather than the equipment type itself—see
Material compatibility
considerations
(page 63).
20
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Table 2. Ideal characteristics of finishes, furnishings, and other surfaces (e.g., floors)
Characteristic Selection guidance
Cleanable Avoid items with hard-to-clean features (e.g., crevasses).
Do not use carpet in patient care areas.
Select material that can withstand repeated cleaning.
Easy to maintain and repair Avoid materials that are prone to cracks, scratches, or chips, and quickly patch/
repair if they occur.
Select materials that are durable or easy to repair.
Resistant to microbial growth Avoid materials that hold moisture, such as wood or cloth, because these
facilitate microbial growth.
Select metals and hard plastics.
Nonporous Avoid items with porous surfaces, such as cotton, wood and nylon.
Avoid porous plastics, such as polypropylene, in patient care areas.
Seamless Avoid items with seams.
Avoid upholstered furniture in patient care areas.
2.4 Policies and procedural elements
The development of facility cleaning policy, SOPs, checklists, and other job aids are key elements for implementing an
effective environmental cleaning program according to best practices.
2.4.1 Cleaning policies
The facility-specific environmental cleaning policy provides the standard to which the facility will perform to
meet best practices and enables a common understanding among staff of the required program elements.
If an external company manages the cleaning program, the facility policy can be used to develop
the contract or service level agreement.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
21
Facility Environmental Cleaning Policies
Should always include the following elements:
defined lines of accountability and functional reporting lines and responsibilities for all
implicated staff
cleaning schedules for every patient care area and noncritical patient care equipment, specifying the
frequency, method, and staff responsible
contingency plans and required cleaning procedures for environmentally hardy organisms and for
outbreak management
training requirements and performance standards for cleaning staff
monitoring methods, frequency, and staff responsible
list of approved cleaning products, supplies, and equipment and any required specifications
on their use
list of necessary PPE and when hand hygiene action is recommended for staff and patient safety
It is best practice to consult national or subnational (e.g., provincial) governmental policies during the
development of facility policies, to ensure that governmental standards for healthcare environmental
cleaning are incorporated into the document. For example, governmental bodies might have lists of
environmental cleaning products that are approved for use in healthcare. There could also be national
accreditation bodies for hospitals that have requirements for healthcare cleaning programs and policy.
Cleaning Schedules
Provide details on key technical requirements for environmental cleaning, including:
frequency
method (product, process)
staff responsible for specific cleaning tasks
These requirements affect staffing and scheduling needs, oversight, and monitoring needs and have
implications for supply and equipment needs (particularly consumable materials).
Use facility-specific risk assessments to develop cleaning schedules. See
Appendix A – Risk-
assessment for determining environmental cleaning method and frequency
(page 71).
In the early stages of cleaning program development, use the results of this risk assessment to prioritize
the development of SOPs and other job aids for higher-risk areas.
Environmental Cleaning Procedures
(page 41) can also be consulted as a reference for developing
cleaning schedules.
2.4.2 Standard operating procedures
Facility-specific SOPs for each environmental cleaning task are essential to guide cleaning staff practices.
The SOPs should be readily available to cleaning staff, cleaning supervisors and other ward staff as needed
for reference.
If an external company manages the cleaning program, the facility should provide their SOPs to
the contracting company or, at a minimum, internally validate the company SOPs to ensure they
are in line with the facility policy.
22
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Standard Operating Procedures (SOP)
Environmental cleaning SOPs should always include the following elements:
the specific supplies and equipment needed for the cleaning session; refer to
Environmental Cleaning Supplies
and Equipment
(page 27).
preparatory steps, including hand hygiene and required PPE session; refer to
Personal protective equipment for
environmental cleaning
(page 34).
step-by-step instructions on the cleaning process, in the order they should be performed; refer to
General environmental cleaning techniques
(page 42).
final steps, including collection of soiled cleaning supplies for reprocessing or disposal, safe removal of
PPE, and hand hygiene; refer to
Care and storage of supplies, equipment and personal protective equipment
(page 37).
Use manufacturer’s instructions to develop SOP and include:
preparation of environmental cleaning products (i.e., dilution, if applicable)
reprocessing of reusable cleaning supplies, equipment and personal protective equipment
reprocessing (i.e., cleaning and disinfection) of noncritical patient care equipment
These are additional best practices for SOPS:
Always develop SOPs and other written or pictorial job aids with careful consideration of literacy levels and
preferred language of cleaning staff.
Ð Use infographics to present a clear message.
A manual with all the facility SOPs should be available with the cleaning program manager.
Individual SOPs should also be available in a central location(s) within each ward or service area, as close as
possible to where they are needed.
2.4.3 Cleaning checklists, logs, and job aids
It is best practice to develop supplemental materials to assist with the implementation of SOPs.
Cleaning checklists are an interactive tool that can help ensure that all steps of an
SOP are completed. For example, a checklist with the individual high-touch surfaces can
supplement a SOP for routine cleaning in a specific patient care area.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
23
Cleaning logs are job aids that can help guide the daily workflow for cleaning staff and
ultimately become records.
They specify the location (i.e., room, ward), cleaning session (e.g., routine cleaning, terminal
cleaning), date, and name/signature of cleaning staff. They are typically developed using
occupancy records, where clinical staff (e.g., ward in-charge) record the occupied beds/areas.
They are also important as records that environmental cleaning is occurring as specified in
facility policy and accountability and tracking mechanisms.
Make logs available in central locations or where the cleaning task occurs so that
supervisory staff can manage them on a daily basis, along with staff (e.g., IPC focal person)
responsible for periodic monitoring activities.
Also develop logs for required periodic or scheduled cleaning tasks (e.g., weekly, monthly),
such as replacement of window coverings (e.g., curtains).
Cleaning job aids include posters, pictorial guides, and other visual reminders for key
cleaning tasks.
For monitoring environmental cleaning supplies and equipment:
Use checklists and logs to facilitate routine inspection and maintenance of these items.
To prevent stock-outs, keep checklists and logs in the designated environmental cleaning
services closet, and the cleaning program manager should periodically review them (e.g.,
weekly, monthly) to inform the procurement staff or contracting company of supply needs.
Post job aids (e.g., pictorial guides) in the designated environmental cleaning services
closet for the preparation of environmental cleaning products, supplies, and equipment
(e.g., cleaning cart, if applicable).
2.5 Monitoring, feedback, and audit elements
Structured monitoring programs ensure that environmental cleaning is conducted according to best practices. There
must be organizational support and resources to address deficiencies identified during monitoring activities. Use a
standardized methodology for monitoring, apply it on a routine basis, and provide timely feedback to cleaning staff
and program leadership.
If an external company manages the cleaning program, facility staff such as the cleaning program
manager or focal person or a member of the IPC committee should still periodically conduct
monitoring activities.
Common monitoring methods are summarized in Table 3 (below) and described in detail in
Methods for assessment of
cleaning and cleanliness
(page 64).
Given the advantages and disadvantages of these methods, it is best practice to:
Use both direct (e.g., performance observation) and indirect methods (e.g., environmental marking).
Use objective (e.g., ATP bioluminescence) over subjective methods (e.g., assessments of cleanliness), if resources allow.
24
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Table 3. Suggested monitoring staff and frequency for common routine monitoring methods
Monitoring method Monitoring staff
d
Monitoring frequency
Performance
observations
Cleaning supervisors At least weekly
Might be more frequent with new cleaning staff and eventually reduce
in frequency after a defined time or target score has been reached
Visual assessments
of cleanliness
Cleaning supervisors
Cleaning program manager or
focal person
IPC or hygiene committee staff
Developed at facility level, based on local policy and context
(e.g., resources)
See
Methods for assessment of cleaning and cleanliness
(page 64)
Fluorescent markers
(e.g., UV visible)
Cleaning supervisors
Cleaning program manager or
focal person
IPC or hygiene committee staff
Developed at facility level, based on local policy and context
(e.g., resources)
See
Methods for assessment of cleaning and cleanliness
. (page 64)
2.5.1 Routine monitoring
In the inpatient setting, it is best practice to routinely (e.g., weekly) monitor; see
Options for Evaluating
Environmental Cleaning
, CDC (https://www.cdc.gov/hai/toolkits/appendices-evaluating-environ-cleaning.html):
At least 5% of beds (≥150 bed facilities) or a minimum of 15 patient care beds/areas (for hospitals with
less than 150 beds).
Ð for facilities with less than 15 beds, this can be increased to 25%
If resources allow, 10-15% of beds should be monitored on a weekly basis during the first year of the
monitoring program.
It is important that the agreed-upon frequency (e.g., weekly) can be consistently maintained in order to
establish benchmarks and track changes in practice and performance over time.
In the outpatient setting, it is best practice to monitor at least 10-15% of examination or procedural areas
on a weekly basis. If resources allow, this can be increased to 25% weekly, allowing every examination or
procedural area to be monitored on a monthly basis.
d
Set up processes so that staff external to the environmental cleaning program conduct periodic monitoring activities to validate findings. For example, IPC or hygiene
committee staff not directly involved in day-to-day oversight and management of the cleaning program should periodically conduct monitoring in order to validate the
results generated internally by cleaning supervisors
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
25
2.5.2 Feedback mechanisms
Promptly return monitoring results to cleaning staff, so they can make immediate improvements to practice,
and management (e.g., cleaning program manager), to make more general improvements to the cleaning
program. Feedback mechanisms should include:
direct feedback to staff
reporting to management
Direct feedback to staff:
Provide multiple types of direct feedback to cleaning staff, including:
real-time feedback and coaching, during or following performance observations
a regular verbal debrief (e.g., monthly), usually during a one-on-one meeting between the
cleaning staff and their direct supervisors
performance reviews (written or verbal), usually on an annual basis
Reporting to management:
Share monitoring results with the cleaning program manager and the facility IPC or hygiene committee
so they can present summary or aggregate reports—both at facility level and stratified by patient care
area (e.g., ward) or type of clean (e.g., terminal vs routine)—to administration and management. This
analysis will identify trends and program-level gaps that require corrective action. For example, there may
be consistently lower clean scores for terminal cleans or within a particular patient care area, identifying a
need to further understand the barriers and gaps for these cleaning procedures. Generally, these high-level
trend reports will be more useful over time when there is more data available from the program.
During early stages of cleaning program development, the most valuable form of feedback is
directly “coaching” cleaning staff and supervisors in a non-punitive manner so they can make
prompt improvements to practice.
26
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Audit results can also inform needed modifications to contracts or service level
agreements, if the cleaning program is managed by an external company.
2.5.3 Program audits
In environmental cleaning programs with functional routine monitoring programs, it is best practice to
periodically perform a comprehensive program audit to review the major program elements and identify areas
for improvement at the programmatic level.
Program audits should review all the key program elements.
Perform them annually or every two years.
Auditors should not be facility staff or at least should not be directly involved with the program
implementation.
Options for auditors will be context-specific, but some potential options include auditors from an external
company, Ministry of Health or subnational (e.g., district/provincial) health officers, or staff from another
healthcare facility in the same network.
File program audit reports and records on-site at the facility to allow benchmarking and to inform the
development of remedial action plans and quality improvement projects.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
27
3. Environmental Cleaning Supplies and Equipment
The selection and appropriate use of supplies and equipment is critical for effective environmental cleaning. This chapter provides
overall best practices for selection, preparation, and care of environmental cleaning supplies and cleaning equipment, including:
cleaning and disinfectant products
reusable/disposable supplies and equipment
PPE used by cleaning staff for performing cleaning procedures
Ideal Properties
For all products used for healthcare environmental cleaning:
Nontoxic: it should not be irritating to the skin or mucus membranes of the user, visitors, and patients.
Everything being equal, choose products with the lowest toxicity rating.
Easy to use: directions for preparation and use should be simple and contain information about
PPE as required.
Acceptable odor: it should not have offensive odors to users and patients.
Solubility: it should be easily soluble in water (warm and cold).
Economical/Low cost: it should be affordable.
Additional Ideal Properties
For cleaning products:
Efficacious: should remove dirt, soil, and various organic substances.
Environmentally friendly: should not cause environmental pollution upon disposal; biodegradable.
For disinfectants:
Broad spectrum: it should have a wide antimicrobial range, including those pathogens that are common c
auses of HAIs and outbreaks.
Rapid action: it should be fast acting and have a short contact time.
Remains wet: it should keep surfaces wet long enough to meet recommended contact times with a
single application.
Not affected by environmental factors: it should be active in the presence of trace quantities of organic
matter (e.g., blood) and compatible with cleaning supplies (e.g., cloths) and products (e.g., detergents)
and other chemicals encountered in use.
Material compatibility: it should be proven compatible with common healthcare surfaces and equipment.
Persistence: it should have residual antimicrobial effect on the treated surface.
Cleaner: it should have some cleaning properties.
Nonflammable: it should have flash point of more than 65°C (150°F).
Stability: it should be stable in concentration and use dilution.
3.1 Products for environmental cleaning
There are different kinds of products available for environmental cleaning, which all have distinct properties and
advantages and disadvantages to their potential use in healthcare.
28
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
These are the best practices for environmental cleaning products (e.g., detergents, disinfectants):
Develop and maintain a master list of facility-approved environmental cleaning products in the facility cleaning policy, as
well as a list of approved suppliers (i.e., manufacturers, distributors).
Minimize the number of different environmental cleaning products in use at the facility. Clearly stating this in the facility
cleaning policy will:
Ð simplify the environmental cleaning process
Ð minimize the training requirements for cleaning staff
Ð reduce the potential for errors in preparation and use
Store environmental cleaning products in a manner that:
Ð eliminates contamination risk and degradation
Ð minimizes contact with personnel (e.g., inhalation, skin contact)
Manage environmental cleaning products according to the product’s safety data sheet (SDS). Display the SDS where
these products are stored and prepared.
Prepare cleaning and disinfectant solutions according to manufacturer’s instructions. Preparing higher-strength
concentrations or diluting beyond recommendations may pose unnecessary risk to patients, staff, visitors, and the
environment.
Ensure that environmental cleaning products are selected that do not damage the surfaces and equipment to be
cleaned and disinfected.
Ensure that standard operating procedures or instructions are available for the preparation, use, and disposal of
environmental cleaning products.
3.1.1 Cleaning products
Cleaning products include liquid soap, enzymatic cleaners, and detergents. They remove organic material
(e.g., dirt, body fluids) and suspend grease or oil. This is done by combining the cleaning product with water
and using mechanical action (i.e., scrubbing and friction).
For most environmental cleaning procedures, select neutral detergents (pH between 6 and 8) that are
easily soluble (in warm and cold water).
There are also specialized cleaning products, which may provide advantages for specific areas or materials
within the healthcare facility (e.g., bathroom/toilet cleaners, floor polishers, glass cleaners). However, consider
specialized products on a case-by-case basis, weighing the advantages and disadvantages (e.g., additional
cost) and ability of the facility to ensure the correct storage, preparation, and use.
3.1.2 Disinfectants
Disinfectants are only for disinfecting after cleaning and are not substitutes for cleaning, unless they
are a combined detergent-disinfectant product. See
Combined detergent-disinfectants
(page 30). Before
disinfecting, use a cleaning product to remove all organic material and soil.
Low-level disinfection is generally adequate for environmental cleaning procedures, but there are specific
cases where intermediate-level disinfection with sporicidal properties (e.g., C. difficile) is required. See
Transmission-based precaution / Isolation wards
(page 59).
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
29
Common low- and intermediate-level disinfectants that can be used for environmental surfaces in healthcare
settings include:
quaternary ammonium compounds
alcohol (ethyl or isopropyl)
chlorine releasing agents (e.g., bleach)
improved hydrogen peroxide
Table 4 (below) shows the main advantages and disadvantages of each of these disinfectants. In practice,
the advantages and disadvantages of each product will have to be weighed with other factors, including
availability and cost.
Do not use these products for disinfection of environmental surfaces and
noncritical patient care equipment:
liquid chemical sterilant or high-level disinfectants (e.g., glutaraldehyde,
peracetic acid, orthophthaldehyde)
antiseptics (e.g., chlorhexidine, iodophors)
phenolics (due to high toxicity)
Table 4. Advantages and disadvantages of common healthcare disinfectants (modified from reference 24)
Disinfectant Advantages Disadvantages
Low-level disinfectant: Quaternary
ammonium compounds
e.g., alkyl dimethyl benzyl
ammonium chloride, alkyl dimethyl
ethylbenzyl ammonium chloride
Spectrum of activity
Bactericidal
Virucidal (only enveloped viruses)
Fungicidal
Toxicity:
may be used on food contact
surfaces.
Wide material compatibility
noncorrosive
Detergent properties, with good
cleaning ability
low cost
Toxicity:
skin irritant, can also cause respiratory irritation
Narrow microbiocidal spectrum
not mycobactericidal or sporicidal, only limited activity
against non-enveloped viruses
diluted solutions can support growth of microorganisms,
particularly gram negative organisms
Affected by environmental factors:
activity reduced by various materials (e.g., cotton, water
hardness, microfiber cloths, organic material)
could induce cross resistance with antibiotics
persists in the environment and waterways
Intermediate-level disinfectant:
Alcohols (60-80%)
e.g., isopropyl alcohol, ethyl alcohol,
and methylated spirits
Spectrum of activity
Bactericidal
Virucidal
Fungicidal
Mycobactericidal
Broad spectrum (but not
sporicidal)
Rapid action
Nontoxic
Non-staining, no residue
Noncorrosive
Low cost
Good for disinfecting small
equipment or devices that can be
immersed
Slow acting against non-enveloped viruses
Does not remain wet
rapid evaporation makes contact time compliance difficult
(on large environmental surfaces)
Affected by environmental factors:
inactivated by organic material
Material compatibility:
can damage materials (plastic tubing, silicone, rubber,
deteriorate glues)
Flammable
30
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Do not use a combined (one-step) detergent-disinfectant product (instead use a two-step
process) when performing environmental cleaning for:
C. difficile—see
Transmission-based precaution / Isolation wards
(page 59).
spills of blood or bodily fluids—see
Spills of blood or body fluids
(page 48).
Disinfectant Advantages Disadvantages
Intermediate-level disinfectant:
Chlorine releasing agents
e.g., bleach/sodium or
calcium hypochlorite, sodium
dichloroisocyanurate (NaDCC)
Spectrum of activity
Bactericidal
Virucidal
Fungicidal
Mycobactericidal
Sporicidal (hypochlorites only at
5000ppm or 0.5%)
Hypochlorites are broad
spectrum (sporicidal)
Rapid action
Nonflammable
Low cost
Widely available
Can reduce biofilms
Affected by environmental factors:
inactivated by organic material
High toxicity:
can release toxic chlorine if mixed with acids or ammonia
skin and mucous membrane irritant
Material compatibility:
damages fabrics, carpets
corrosive
Leaves residue, requires rinsing or neutralization
Offensive odors
Poor stability:
subject to deterioration if exposed to heat and UV
Intermediate-level disinfectant:
Improved hydrogen peroxide
e.g., 0.5% enhanced action
formulation hydrogen peroxide, 3%
hydrogen peroxide
Spectrum of activity
Bactericidal
Virucidal
Fungicidal
Mycobactericidal
Sporicidal (only at 4-5%)
Rapid action
Nontoxic
Detergent properties, with good
cleaning ability
Not affected by environmental
factors
active in the presence of
organic material
Safe for environment
Material compatibility:
contraindicated for use on copper, brass,
zinc, aluminum
High cost
3.1.3 Combined detergent-disinfectants
Combined (one-step) detergent-disinfectant products can generally be used in place of a two-step (separate
detergent and disinfectant product) process when disinfection is indicated for specific environmental cleaning
procedures. See
Environmental Cleaning Procedures
(page 41).
Table 4 (Continued)
When using a combined product for environmental cleaning, it is recommended to periodically (i.e., on a
scheduled basis) use a rinse step to remove residues from surfaces. Additionally, care should be taken to
ensure that the combined product stays wetted on the surface for the required contact time (to complete
the disinfection process). Consult the product label to get the correct contact time.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
31
3.2 Preparation of environmental cleaning products
Environmental cleaning products are often sold as concentrated formulas that are diluted (i.e., combined with water)
to make a solution.
These are the best practices for preparation of environmental cleaning products:
Always prepare solutions according to the manufacturer’s instructions. Most chemicals (including cleaning products)
work at an optimum dilution—too diluted or too concentrated impacts the effectiveness of the product and may pose
unnecessary risk to staff, patients, visitors, and the environment.
Always prepare environmental cleaning products in designated environmental cleaning services areas (i.e., a dedicated,
secured space not used for any other purposes). See
Care and storage of supplies, equipment, and personal protective
equipment
(page 37).
Provide training and simple instructions (e.g., standard operating procedures (SOPs)) for preparing solutions according
to manufacturer’s instructions.
Personal protective equipment (PPE) might be required for preparation of solutions, particularly for disinfectants (e.g.,
sodium hypochlorite). Consult the product’s SDS for the required PPE.
Standardized containers (for measuring solutions) and easy to use pictorial job aids (e.g., posters) should be used for
preparation of solutions.
If feasible, it is highly recommended to:
Prepare solutions with an automatic dispensing system that is calibrated regularly. Manual dilution and mixing are more
subject to error.
Use test strips to confirm correct concentrations of solutions (e.g., for chlorine-based products).
Solutions are generally batch prepared in large containers, which are then transferred to smaller, portable containers (e.g.,
bottles, buckets) for daily cleaning procedures. See
Supplies and equipment for environmental cleaning
below. Solutions
can also be prepared directly into buckets for environmental cleaning of floors, if a standard-sized bucket is available.
All containers used for storing solutions of environmental cleaning products should:
be clean, clearly labeled, and have an expiration date based on the manufacturer’s instructions for stability
be thoroughly cleaned and dried before refilling
never be topped up—use them until the indicated expiration date (after which it should be disposed) or until the
container is empty, whichever comes first
3.3 Supplies and equipment for environmental cleaning
Essential supplies and equipment for environmental cleaning include:
Surface cleaning supplies: portable containers (e.g., bottles, small buckets) for storing environmental cleaning
products (or solutions) and surface cleaning cloths.
Floor cleaning supplies: mops or cleaning squeegee with floor cloths, buckets, and wet floor/caution signs.
Do not use these cleaning supplies and equipment for disinfection of environmental
surfaces and noncritical patient care equipment:
Ð brooms and dry mops
Ð fumigators (and fumigation) and disinfectant fogging
Ð spray bottles: use squeeze bottles instead
32
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
In general, all the essential environmental cleaning supplies and equipment are reusable, but facilities can also choose to
use disposable supplies (e.g., cloths) for certain cleaning tasks or where resources allow. Cleaning equipment should be:
fit for the intended purpose
cleaned and stored dry between uses
properly used
well maintained. See
Care and storage of supplies, equipment, and personal protective equipment
(page 37).
Consider purchasing supplemental supplies and equipment such as toilet brushes or abrasive pads for cleaning certain
surfaces or areas. Some facilities might also have access to more sophisticated equipment such as floor scrubbers or
vacuum cleaners with high-efficiency particulate air (HEPA) filters. If the use of HEPA filters is part of the facility policy,
provide an SOP on its cleaning and maintenance.
Figure 3: Portable squeeze bottle
Figure 4: Color-coded cleaning cloths
Surface cleaning supplies
Portable containers for environmental cleaning products (or solutions) should be
clean, dry, appropriately-sized, labelled, and dated.
Narrow-necked bottles are preferred over buckets to prevent the “double-
dipping” of cleaning cloths, which can contaminate solutions.
Squeeze bottles are preferred over spray bottles for applying cleaning or
disinfectant solutions directly to cleaning cloths before application to a surface.
Surface cleaning cloths should be cotton or microfiber (disposable wipes can be
used if resources allow). Have a supply of different colored cloths to allow color-
coding: for example, one color for cleaning and a second color for disinfecting.
Color-coding also prevents cross-contamination between areas, like from toilets to
patient areas, or isolation areas to general patient areas. For example, red cloths
could be used specifically for toilet areas, blue for general patient areas, and yellow
for isolation areas.
Floor cleaning supplies
Mop heads or floor cloths should be cotton or microfiber.
Use a cart or trolley with two or three buckets for the mopping process—
see the
Preparation of supplies and equipment section
(page 33).
It is highly recommended to display a wet floor/caution sign before
starting mopping activities.
Figure 5: Cotton mop (left),
microfiber floor cloth (right)
and a floor safety sign
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
33
These are the best practices for cleaning carts and trolleys:
Separate clean and soiled items (e.g., cleaning cloths)
Never put personal items, food, or beverages in them.
Equip them with a lockable compartment for containers of cleaning and disinfectant solutions.
Thoroughly clean them at the end of each day or shift—see
Care and storage of supplies, equipment, and personal
protective equipment
(page 37).
While in use, never leave them unattended or out of your sight.
When not in use, store them in a designated environmental cleaning services area.
Figure 6: Cleaning cart setup, including color-
coded buckets for different environmental cleaning
solutions (e.g., disinfectants, detergents)
Microfiber Versus Cotton
Give careful consideration to the type of material before purchasing cleaning cloths.
Microfiber cloths are often preferred over cotton for both cleaning cloths and mop heads because microfiber
absorb more dirt and microorganisms than cotton. However, microfiber cloths can be damaged by high pH
and therefore not compatible with all disinfectant products (especially chlorine-based). They need to be
laundered separately from cotton cloths/linens, which could be expensive.
Disinfectant or Detergent-Disinfectant Wipes
Prepared (ready-to-use) wipes that are saturated with an appropriate disinfectant or detergent-disinfectant
product can be used as an alternative to cotton or microfiber cleaning cloths. Take care to evaluate the
appropriateness of the product, considering the recommended properties. It is also important to ensure
that they are stored appropriately with the lid closed, so the wipes remain wet. Discard wipes if they are no
longer saturated. Follow manufacturer’s instructions for storing wipes and reprocessing containers, as well
as instructions for use (e.g., recommended contact times).
3.3.1 Preparation of supplies and equipment
Daily preparation of supplies and equipment for a given cleaning staff member or location will depend on
local factors, including the size of patient care areas and number and type of patient zones to be cleaned.
Cleaning carts and trolleys
Cleaning carts and trolleys provide several benefits, such as the ability to
carry and safely manage all the essential cleaning supplies and equipment
and increased occupational safety for cleaning staff.
Stock cleaning carts with sufficient quantities of supplies (e.g., cleaning
cloths, cleaning solutions) to avoid the need to return for more supplies in the
middle of cleaning in a particular patient care area.
34
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Surface cleaning supplies
Portable containers of environmental cleaning products (or solutions) and cleaning cloths can be carried directly on the
cleaning cart or on a caddie kit, if a full cleaning cart is not available.
The cart should have enough cleaning cloths to complete the required cleaning session, with a clean cloth for each patient
zone to prevent cross-contamination. Keep clean and soiled cloths separate. Place clean clothes in one container or
section of the caddie and soiled cloths in another.
Floor cleaning supplies
It is best practice to use a two- or three-bucket system for mopping.
This can be facilitated on the cleaning cart or on a separate trolley, if
a full cleaning cart is not available.
Two-bucket system (routine cleaning): one bucket contains a
detergent or cleaning solution and the other contains rinse water
(Figure 7).
Three-bucket system (for disinfection): one bucket contains the
detergent or cleaning solution, one contains rinse water and one
the disinfectant or disinfectant solution (Figure 8).
The rinse water bucket allows the mop to be rinsed and wrung out
before it is re-dipped into the prepared solution. This extends the life
of the solution (i.e., fewer changes are required), which saves both
time and material costs.
Figure 7: Two-bucket mopping system
Figure 8: Three-bucket mopping system
3.4 Personal protective equipment for environmental cleaning
Appropriate PPE for the cleaning staff for all environmental cleaning procedures should always be available and used
appropriately to reduce risk to both patients and staff.
PPE is required to prevent:
exposure to microorganisms
exposure to cleaning chemicals (e.g., disinfectants)
the spread of microorganisms from one patient care area to another
The PPE required should be visibly marked or verbally communicated to cleaning staff by IPC
staff by cleaning supervisors, before starting every cleaning session.
IPC staff should either visibly mark or verbally communicate required PPE to staff or cleaning
supervisors before starting every cleaning session.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
35
These are the best practices for cleaning staff PPE:
Always perform hand hygiene immediately before wearing gloves (donning) and immediately after removal (doffing).
Train cleaning staff on appropriate use, application, and removal of required PPE for all environmental cleaning
procedures and tasks for which they are responsible.
Ð
Table 5
(page 36) shows the general indications for PPE use, but always consult local IPC staff about location-
specific PPE requirements.
Put on all required PPE before entering a patient care area and remove it (for disposal or reprocessing, if reusable)
before leaving that area.
Ð Exception: do not take off PPE in an airborne precaution area (e.g., TB ward) where a respirator (e.g., N95 or FPP2)
is required, until after departing that area.
SOPs and pictorial job aids should list required PPE for specific tasks (including signage for isolation areas, preparation
of solutions).
Use SDS to determine required PPE for preparing environmental cleaning products and solutions (e.g., manual
dilutions).
Make sure all PPE (reusable and disposable) is:
Ð in good supply
Ð well maintained (good quality, appropriately stored)
Ð cleaned before use
Ð in good repair
Reprocess (i.e., clean and disinfect) all reusable PPE at least once a day. See
Care and storage of supplies, equipment,
and personal protective equipment
(page 37).
Conduct regular fit-testing for cleaning staff who are required to wear respirators.
Use reusable rubber gloves for cleaning.
Use chemical-resistant gloves (e.g., nitrile, latex) for preparation of cleaning chemicals.
Best practices for glove usage for cleaning:
Perform hand hygiene immediately before putting on gloves and directly after taking them off.
Routine use of gloves is not recommended unless:
Ð the patients in the area are on transmission-based precautions
Ð there is risk of hand contact with blood or body fluids (e.g., cleaning a spill, cleaning the bed of an
incontinent patient)
Ð there is prolonged contact with disinfectants (e.g., terminal cleaning)
When use of gloves is indicated always change them (i.e., reprocess) between each cleaning session (e.g.,
routine cleaning of a patient zone under contact precautions, terminal cleaning of a general patient area).
See
Table 5
(page 36).
36
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Best practices for cleaning staff personal attire/grooming:
Keep sleeves at or above the elbow to not interfere with glove use or hand hygiene.
Wear rubber-soled closed toe shoes or boots (i.e., not sandals), to prevent accidental injury (e.g., slips and
falls) and exposure to cleaning chemicals, dirt, or bacteria.
Remove wristwatches and hand jewelry before starting cleaning tasks—these items can tear gloves and
can also pick up microorganisms.
Keep fingernails short and free of nail varnish to prevent tearing of gloves and picking up dirt
and bacteria.
Table 5. Recommended personal protective equipment for environmental cleaning tasks / cleaning in
specific patient areas
Type of cleaning task Required personal protective equipment for cleaning staff
Routine cleaning (standard precautions)
None (unless spills or contamination risk—see below)
Terminal cleaning (standard precautions) Reusable rubber gloves
Blood and body fluid spills and high contamination
risk areas (e.g., cleaning bed of an incontinent
patient, labor and delivery wards)
Gown and/or plastic apron
Reusable rubber gloves
Face mask with either goggles or face shield
Droplet precautions (routine and terminal cleaning) Gown and/or plastic apron
Reusable rubber gloves
Face mask with either goggles or face shield
Contact precautions (routine and terminal cleaning) Gown and/or plastic apron
Reusable rubber gloves
Airborne precautions (routine and terminal cleaning) Respirator (N95 or FPP2), fit tested
Reusable rubber gloves
Preparation of disinfectant products and solutions According to specifications in SDS (manufacturer instructions)
If SDS not available, then:
Chemical-resistant gloves (e.g., nitrile)
Gown and/or apron
Face mask with either goggles or face shield
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
37
Reusable rubber gloves
Face Mask
Respirator (N95 or FPP2)
Goggles
Plastic apron
Face shield
Recommended personal protective equipment
3.5 Care and storage of supplies, equipment, and personal
protective equipment
Environmental cleaning supplies and equipment quickly become contaminated during their use. Regularly reprocess all
reusable items (i.e., thoroughly clean, disinfect, and dry).
These are the best practices for reprocessing reusable cleaning supplies and equipment:
Send all reusable supplies and equipment (e.g., buckets, rubber gloves) for reprocessing:
Ð directly after use in a transmission-based precaution area
Ð when soiled with blood or body fluids
Thoroughly clean, disinfect, and rinse equipment such as buckets and containers whenever solution is replaced and
daily. Store them upside down to allow complete drying.
Launder mop heads, floor cloths, and soiled cleaning cloths at least daily (e.g., at the end of the day) and allow them
to fully dry before storage and reuse.
Reprocess all reusable supplies and equipment in a dedicated area that is not used for other purposes (i.e.,
reprocessing of cleaning equipment should never be conducted in handwashing sinks).
Reprocess (e.g., launder) all reusable supplies and equipment according to manufacturer’s instructions.
Gown
38
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Do not use chlorine-based disinfectants to disinfect microfiber cloths.
Use laundry services with hot water (70–80°C x 10 min) [158–176°F] to reprocess cloths and
mop heads, if they are available. Similarly, a commercial dryer can be used for these items, if
available (if not, these items are reprocessed as above).
Always launder mop heads and cleaning cloths separately from other soiled hospital textiles.
Manual reprocessing steps
If manufacturer’s instructions are not available, use this general process to manually reprocess reusable
supplies, equipment, and PPE:
1. Immerse in detergent solution and use mechanical action (e.g., scrubbing) to remove soil.
2. Disinfect by:
fully immersing the items in boiling water or
fully immersing the items in disinfectant solution for the required contact time and rinsing with clean water
to remove residue
3. Allow to fully dry
Lay items to dry in a clean and dry area to prevent recontamination.
Ð Position mops with the head up to allow the mop head to fully dry.
All reusable supplies and equipment should be well maintained, clean, and in good repair. Regularly inspect and replace
or repair all reusable equipment when needed. Develop a facility monitoring and maintenance schedule that clearly
documents reusable supplies and equipment, frequency of inspection, and responsible staff.
Certain equipment, such as floor polishers, might require maintenance checks by qualified people according to the
manufacturer’s instructions. Keep a service record and make it available for inspection by the cleaning program manager
and the IPC Team.
Environmental cleaning services area
Designate at least one environmental cleaning services area within the facility for preparation, storage, and reprocessing
of reusable cleaning equipment and supplies. This area should not be used for any other purposes. For multistory
facilities, it is best practice to have one of these areas on each floor.
The designated environmental cleaning services area should:
be well-ventilated and illuminated (lighting or window access)
be labeled with a biohazard sign on the door
have an appropriate water supply (hot and cold water access, if feasible)
have a utility sink/floor drain for safe disposal of used solutions
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
39
be designed so that, whenever possible, buckets can be emptied into utility sink/floor drains without lifting them or
creating splashes
have a dedicated handwashing sink, used only for handwashing
have access to an eyewash station
have appropriate PPE available
have enough space to keep reprocessing (dirty areas) separate from storage areas for cleaned equipment
be easily accessible in relation to the areas it serves (i.e., easily accessible throughout the facility)
be appropriately sized to the amount of materials, equipment, and chemicals stored in the room/area
have printed copies of the SDS for all environmental cleaning products, manufacturer’s instructions, and job aids for
preparation of cleaning and disinfectant solutions
never contain personal clothing or grooming supplies, food or beverages
there should be a separate area for cleaning staff to store these items
have safe chemical storage and access
have locks fitted to all doors to restrict access only to cleaning staff
be free from clutter
have washable surfaces (floors, walls, shelves)
40
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
41
Checklists and other job aids are also required to ensure that cleaning is thorough and effective.
These aspects are covered in more detail in
Cleaning checklists, logs, and job aids
(page 22).
4. Environmental Cleaning Procedures
This chapter provides the current best practices for environmental cleaning procedures in patient care areas, as well as cleaning
for specific situations (e.g., blood spills) and for noncritical patient care equipment; see summary in
Appendix B1 – Cleaning
procedure summaries for general patient areas
(page 73) and
Appendix B2 – Cleaning procedure summaries for specialized
patient areas
(page 77).
The determination of environmental cleaning procedures for individual patient care areas, including frequency, method, and
process, should be based on the risk of pathogen transmission. This risk is a function of the:
probability of contamination
vulnerability of the patients to infection
potential for exposure (i.e., high-touch vs low-touch surfaces)
These three elements combine to determine low, moderate, and high risk—more frequent and rigorous (with a different method
or process) environmental cleaning is required in areas with high risk. Risk determines cleaning frequency, method, and
process in routine and contingency cleaning schedules for all patient care areas. This risk-based approach is outlined in
Appendix A – Risk-assessment for determining environmental cleaning method and frequency
(page 71).
Risk-Based Environmental Cleaning Frequency Principles
Probability of contamination: Heavily contaminated surfaces and items require more frequent and thorough
environmental cleaning than moderately contaminated surfaces, which in turn require more frequent and rigorous
environmental cleaning than lightly or non-contaminated surfaces and items.
Vulnerability of patients to infection: Surfaces and items in care areas containing vulnerable patients (e.g.,
immunosuppressed) require more frequent and rigorous environmental cleaning than surface and items in areas with
less vulnerable patients.
Potential for exposure to pathogens: High-touch surfaces (e.g., bed rails) require more frequent and rigorous
environmental cleaning than low-touch surfaces (e.g., walls).
Every facility should develop cleaning schedules, including:
identifying the person responsible
the frequency
the method (product, process)
detailed SOPs for environmental cleaning of surfaces and noncritical equipment in every type of patient care area
42
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
4.1 General environmental cleaning techniques
For all environmental cleaning procedures, always use the following general strategies:
Conduct Visual Preliminary Site Assessment
Proceed only after a visual preliminary site assessment to determine if:
patient status could pose a challenge to safe cleaning
there is any need for additional PPE or supplies (e.g., if there are any spills of blood/body fluids or if the patient
is on transmission-based precautions)
there are any obstacles (e.g., clutter) or issues that could pose a challenge to safe cleaning
there is any damaged or broken furniture or surfaces to be reported to supervisor/management
Proceed From Cleaner To Dirtier
Proceed from cleaner to dirtier areas to avoid spreading
dirt and microorganisms. Examples include:
During terminal cleaning, clean low-touch
surfaces before high-touch surfaces.
Clean patient areas (e.g., patient zones)
before patient toilets.
I
t
e
m
s
t
o
u
c
h
e
d
d
u
r
i
n
g
p
a
t
i
e
n
t
c
a
r
e
Patients &
direct
contact
items
S
h
a
r
e
d
e
q
u
i
p
m
e
n
t
&
c
o
m
m
o
n
s
u
r
f
a
c
e
s
Within a specified patient room, terminal cleaning should start with shared equipment and common surfaces,
then proceed to surfaces and items touched during patient care that are outside of the patient zone, and finally
to surfaces and items directly touched by the patient inside the patient zone (Figure 9).
In other words, high-touch surfaces outside the patient zone should be cleaned before the high-touch surfaces
inside the patient zone.
Clean general patient areas not under transmission-based precautions before those areas under transmission-
based precautions.
Proceed From High To Low (Top To Bottom)
Proceed from high to low to prevent dirt and microorganisms from dripping or falling and contaminating already
cleaned areas. Examples include:
cleaning bed rails before bed legs
cleaning environmental surfaces before cleaning floors
cleaning floors last to allow collection of dirt and microorganisms that may have fallen
Figure 9. Example of a cleaning strategy from cleaner to dirtier areas
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
43
Proceed in a Methodical, Systematic Manner
Proceed in a systematic manner to avoid missing
areas—for example, left to right or clockwise
(Figure 10).
In a multi-bed area, clean each patient zone in the same
manner—for example, starting at the foot of the bed and
moving clockwise.
Immediately Attend to Body Fluid Spills
Clean spills of blood or body fluids immediately, using the techniques in
Spills of blood or body fluids
(page 48).
This is the general surface cleaning process:
1. Thoroughly wet (soak) a fresh cleaning cloth in the environmental cleaning solution.
2. Fold the cleaning cloth in half until it is about the size of your hand. This will ensure that you can use all of the
surface area efficiently (generally, fold them in half, then in half again, and this will create eight sides).
3. Wipe surfaces using the general strategies as above (e.g., clean to dirty, high to low, systematic manner), making
sure to use mechanical action (for cleaning steps) and making sure to that the surface is thoroughly wetted to allow
required contact time (for disinfection steps).
4. Regularly rotate and unfold the cleaning cloth to use all of the sides.
5. When all of the sides of the cloth have been used or when it is no longer saturated with solution, dispose of the
cleaning cloth or store it for reprocessing.
6. Repeat process from step 1.
For all environmental cleaning procedures, these are the best practices for environmental cleaning of surfaces:
Use fresh cleaning cloths at the start of each cleaning session (e.g., routine daily cleaning in a general
inpatient ward).
Change cleaning cloths when they are no longer saturated with solution, for a new, wetted cloth. Soiled cloths should
be stored for reprocessing.
For higher-risk areas, change cleaning cloths between each patient zone (i.e., use a new cleaning cloth for each
patient bed). For example, in a multi-bed intensive unit, use a fresh cloth for every bed/incubator—see
Specialized
patient areas
(page 49) for more guidance.
Ensure that there are enough cleaning cloths to complete the required cleaning session.
Figure 10. Example of a cleaning strategy for environmental surfaces,
moving in a systematic manner around the patient care area
Never double-dip cleaning cloths into portable containers (e.g., bottles, small buckets) used for storing
environmental cleaning products (or solutions).
Never shake mop heads and cleaning cloths—it disperses dust or droplets that could contain
microorganisms.
Never leave soiled mop heads and cleaning cloths soaking in buckets.
44
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
High-Touch Surfaces:
The identification of high-touch surfaces and items in each patient care area is a necessary prerequisite to the
development of cleaning procedures, as these will often differ by room, ward and facility. See
Appendix C –
Example of high-touch surfaces in a specialized patient area
(page 91). Perform assessments and observations of
workflow in consultation with clinical staff in each patient care area to determine key high-touch surfaces.
Include identified high-touch surfaces and items in checklists and other job aids to facilitate
completing cleaning procedures. See
Cleaning checklists, logs, and job aids
(page 22).
Common high-touch surfaces include:
bedrails
IV poles
sink handles
bedside tables
counters where medications
and supplies are prepared
edges of privacy curtains
patient monitoring equipment (e.g.,
keyboards, control panels)
transport equipment (e.g.,
wheelchair handles)
call bells
doorknobs
light switches
4.2 General patient areas
General patient areas include:
outpatient or ambulatory care wards
general inpatient wards with patients admitted for medical procedures, who are not receiving acute care (i.e.,
sudden, urgent or emergent episodes of injury and illness that require rapid intervention)
Three types of cleaning are required for these areas:
routine cleaning
terminal cleaning
scheduled cleaning
Generally, the probability of contamination or the vulnerability of the patients to infection
is low, so these areas may require less frequent and rigorous (e.g., method, process)
ning than specialized patient areas.
4.2.1 Outpatient wards
General outpatient or ambulatory care wards include waiting areas, consultation areas, and minor
procedural areas.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
45
Table 6. Recommended Frequency, Method and Process for Outpatient Wards
Area Frequency Method Process
Waiting / Admission At least once daily (e.g., per
24-hour period)
Clean High-touch surfaces and floors
Consultation / Examination At least twice daily Clean High-touch surfaces and floors
Procedural (minor
operative procedures; e.g.,
suturing wounds, draining
abscesses)
Before and after (i.e.,
between
g
) each procedure
Clean and disinfect High-touch surfaces and floors, with
an emphasis on the patient zone,
procedure table
Procedural (minor
operative procedures; e.g.,
suturing wounds, draining
abscesses)
End of the day (terminal
clean)
Clean and disinfect All surfaces and the entire floor
Handwashing sinks, thoroughly clean
(scrub) and disinfect
Sluice areas/sinks or scrub areas
All Scheduled basis (e.g.,
weekly, monthly) and when
visibly soiled
Clean
Low-touch surfaces; see
Scheduled
cleaning
(page 46)
g
If there is prolonged time between procedures or local conditions that create risk for dust generation/dispersal, re-wipe surfaces with disinfectant solution immediately
before the subsequent procedure.
4.2.2 Routine cleaning of inpatient wards
Routine cleaning of inpatient areas occurs while the patient is admitted, focuses on the patient zones and
aims to remove organic material and reduce microbial contamination to provide a visually clean environment.
Note: this occurs when the room is occupied, and systems should be established to ensure
that cleaning staff have reasonable access to perform routine cleaning.
Table 7. Recommended Frequency, Method and Process for Routine Cleaning of Inpatient Wards
Frequency Method Process
At least once daily (e.g.,
per 24-hour period)
Clean High-touch surfaces and floors
Handwashing sinks
Scheduled basis (e.g., weekly) and when
visibly soiled
Clean
Low-touch surfaces; see
Scheduled
cleaning
(page 46)
4.2.3 Terminal or discharge cleaning of inpatient wards
Terminal cleaning of inpatient areas, which occurs after the patient is discharged/transferred, includes the
patient zone and the wider patient care area and aims to remove organic material and significantly
reduce and eliminate microbial contamination to ensure that there is no transfer of microorganisms to the
next patient.
46
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Responsible Staff
Terminal cleaning requires collaboration between cleaning, IPC, and clinical staff, to delineate
responsibility for every surface and item, including ensuring that:
disposable personal care items are discarded
patient care equipment is removed for reprocessing
It is important that the staff responsible for these tasks are identified in checklists and SOPs to ensure
that items are not overlooked because of confusion in responsibility.
Table 8. Recommended Frequency, Method and Process for Terminal Cleaning of Inpatient Wards
Frequency Method Process
Patient transfer or discharge Clean and disinfect
See gnr rin ning r below
This is the general terminal cleaning process:
1. Remove soiled/used personal care items (e.g., cups, dishes) for reprocessing or disposal.
2. Remove facility-provided linens for reprocessing or disposal; see
Appendix D – Linen and laundry management
(page 92).
3. Inspect window treatments. If soiled, clean blinds on-site, and remove curtains for laundering.
4. Reprocess all reusable (noncritical) patient care equipment; see Noncritical patient care equipment (page 61).
5. Clean and disinfect all low- and high-touch surfaces, including those that may not be accessible when the room/area was
occupied (e.g., patient mattress, bedframe, tops of shelves, vents), and floors.
6. Clean (scrub) and disinfect handwashing sinks.
4.2.4 Scheduled cleaning
Scheduled cleaning occurs concurrently with routine or terminal cleaning and aims to reduce dust and soiling
on low touch items or surfaces. Perform scheduled cleaning on items or surfaces that are not at risk for
soiling under normal circumstances, using neutral detergent and water. But if they are visibly soiled with blood
or body fluids, clean and disinfect these items as soon as possible.
Table 9. Recommended Frequency, Method and Process for Scheduled Cleaning of Inpatient Wards
Frequency Method Process
Weekly Clean
High surfaces (above shoulder height) such as tops of
cupboards, vents
Walls, baseboards and corners
Monthly
See
Appendix D – Linen and
laundry management
(page 92)
Window blinds, bed curtains
Annually
See
Appendix D – Linen and
laundry management
(page 92)
Window curtains
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
47
4.3 Patient area toilets
Toilets in patient care areas can be private (within a private patient room) or shared (among patients and visitors). They
have high patient exposure (i.e., high-touch surfaces) and are frequently contaminated. Therefore, they pose a higher risk
of pathogen transmission than in general patient areas.
Table 10. Recommended Frequency, Method and Process for Patient Area Toilets
Area Frequency Method Process
Private toilets At least once daily (e.g., per
24-hour period), after routine
cleaning of patient care area
Clean and
disinfect
High-touch and frequently contaminated
surfaces in toilet areas (e.g.,
handwashing sinks, faucets, handles,
toilet seat, door handles) and floors
Public or shared toilets
(e.g., patients, visitors,
family members)
At least twice daily Clean and
disinfect
High-touch and frequently contaminated
surfaces in toilet areas (e.g.,
handwashing sinks, faucets, handles,
toilet seat, door handles) and floors
Both (private and shared) Scheduled basis (e.g., weekly)
and when visibly soiled
Clean
Low-touch surfaces; see
Scheduled
cleaning
(page 46)
4.4 Patient area floors
Floors generally have low patient exposure (i.e., are low-touch surfaces) and pose a low risk for pathogen transmission.
Therefore, under normal circumstances they should be cleaned daily, but the use of a disinfectant is not necessary.
Cultural considerations:
Toileting practices vary, in terms of both the types of toilets in use (e.g., squat or sit, wet or dry) and the adherence to
correct use. Therefore, needs for cleaning and disinfection vary. In some cases, more than twice daily cleaning and
disinfection may be warranted.
Depending on resource and staffing levels, dedicated cleaning staff posted at shared toilets in healthcare facilities
could reduce risk associated with these areas.
There are situations where there is higher risk associated with floors (e.g., high probability of
contamination), so review the specific procedures in
General patient areas
(page 44) and
Specialized
patient areas
(page 49) for guidance on frequency of environmental cleaning of floors and when they
should also be disinfected.
48
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Table 11. Recommended Frequency, Method and Process for Patient Area Floors
Area Frequency Method Process
Floors in general inpatient and
outpatient areas, always cleaned last
after other environmental surfaces
At least once daily (e.g., per 24-hour
period) or as often as specified in the
specific patient care area
Clean (unless otherwise
specified within specific
patient care area)
See gnr
ing
r b
This is the general mopping process:
1. Immerse the mop or floor cloth in the bucket with
environmental cleaning solution and wring out.
2. Mop in a figure-eight pattern with overlapping strokes,
turning the mop head regularly (e.g., every 5-6 strokes).
3. After cleaning a small area (e.g., 3m x 3m), immerse
the mop or floor cloth in the bucket with rinse water
and wring out.
4. Repeat process from step 1.
These are the best practices for environmental
cleaning of general patient area floors:
Use wet floor or caution signs to prevent injuries.
Mop from cleaner to dirtier areas.
Mop in a systematic manner, proceeding from area farthest from the exit and working towards the
exit (Figure 11).
Change mop heads/floor cloths and buckets of cleaning and disinfectant solutions as often as needed (e.g.,
when visibly soiled, after every isolation room, every 1-2 hours) and at the end of each cleaning session.
Figure 11. Illustration of mopping
strategy, working toward the exit
4.5 Spills of blood or body fluids
Regardless of the risk-level of an area, spills or contamination from blood or body fluid (e.g., vomitus),
must be cleaned and disinfected immediately using a two-step process.
Table 12. Recommended Frequency, Method and Process for Spills of Blood or Body Fluids
Area Frequency Method Process
Any spill in any patient or
non-patient area
Immediately, as soon
as possible
Clean and disinfect:
do not use combined detergent-
disinfectant product
use intermediate-level disinfectant
See gnr r
r ning  i 
b r b i
below
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
49
4.6 Specialized patient areas
Specialized patient areas include those wards or units that provide service to:
high-dependency patients, (e.g., ICUs)
immunosuppressed patients (e.g., bone marrow transplant, chemotherapy)
patients undergoing invasive procedures (e.g., operating theatres rooms)
patients who are regularly exposed to blood or body fluids (e.g., labor and delivery ward, burn units)
Pay special attention to roles and responsibilities for environmental cleaning.
This is the general process for cleaning of spills of blood or body fluids:
1. Wear appropriate PPE. See
Table 5
(page 36).
2. Confine the spill and wipe it up immediately with absorbent (paper) towels, cloths, or absorbent granules
(if available) that are spread over the spill to solidify the blood or body fluid (all should then be disposed as
infectious waste).
3. Clean thoroughly, using neutral detergent and warm water solution.
4. Disinfect by using a facility-approved intermediate-level disinfectant.
Typically, chlorine-based disinfectants at 500-5000ppm free chlorine (1:100 or 1:10 dilution of 5%
chlorine-bleach; depending on the size of the spill) are adequate for disinfecting spills (however, do
not use chlorine-based disinfectants on urine spills). See
Appendix E – Chlorine disinfectant solution
preparation
(page 94).
Take care to allow the disinfectant to remain wet on the surface for the required contact time (e.g.,
10 minutes), and then rinse the area with clean water to remove the disinfectant residue (if required).
5. Immediately send all reusable supplies and equipment (e.g., cleaning cloths, mops) for reprocessing (i.e.,
cleaning and disinfection) after the spill is cleaned up.
This vulnerable population is more prone to infection and the probability of contamination is high, making
these areas higher-risk than general patient areas.
Unless otherwise indicated, environmental surfaces and floors in the following sections require cleaning
and disinfection with a facility-approved disinfectant for all cleaning procedures described.
50
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
4.6.1 Operating rooms
Operating rooms are highly specialized areas with a mechanically controlled atmosphere where
surgical procedures are performed. These require environmental cleaning at three distinct intervals
throughout the day:
before the first procedure
between procedures
after the last procedure (i.e., terminal cleaning)
Responsible Staff
Because operating rooms are highly specialized areas, the surgery department clinical staff
usually manages environmental cleaning. Operating room nurses and their assistants sometimes
perform cleaning duties along with, or sometimes instead of, general cleaning staff.
Critical and semi-critical equipment in the operating rooms require specialized reprocessing
procedures and are never the responsibility of environmental cleaning staff. The processes
described below pertain only to the cleaning and disinfection of environmental surfaces and the
surfaces of noncritical equipment.
Where multiple staff are involved, clearly defined and delineated cleaning responsibilities must
be in place for cleaning of all environmental surfaces and noncritical patient care equipment
(stationary and portable). The use of checklists and SOPs is highly recommended.
Table 13. Recommended Frequency and Process for Operating Rooms
Frequency Process
Before the first
procedure
Carefully inspect records and assess the operating space to ensure that the terminal clean was completed
the previous evening.
Wipe all horizontal surfaces in the room (e.g., furniture, surgical lights, operating bed, stationary
equipment) with a disinfectant to remove any dust accumulated overnight.
Under normal circumstances, it is not necessary to perform the cleaning step in the morning if terminal
cleaning was conducted the evening before. This preliminary clean just utilizes a disinfectant to ensure
that the space is fully decontaminated before the first procedure.
If there was no written confirmation or terminal cleaning on the previous day, do a full terminal clean
(see r  in rr i rin n n i b).
Thoroughly clean and disinfect portable patient-care equipment that is not stored within the operating
room, such as suction regulators, anesthesia trolley, compressed gas tanks, x-ray machines, and lead
gowns, before introduction into the operating room.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
51
Frequency Process
Before and after
each procedure
Remove all used linen and surgical drapes, waste (including used suction canisters, ¾ filled sharps
containers), and kick buckets, for reprocessing or disposal.
Clean and disinfect:
high-touch surfaces (e.g., light switches, doorknobs) outside of the surgical field
any visible blood or body fluids outside of the surgical field (e.g., walls, floors)
all surfaces (high- and low-touch) and the floor inside of the surgical field, including:
Ð tops of surgical lights
Ð reflective portion of surgical lights
Ð suction canisters
Ð tourniquet cuffs and leads
Ð anesthesia trolley
Ð operating table from top to bottom
After the final
procedure
(i.e., terminal
clean)
Clean and disinfect:
horizontal surfaces (high- and low-touch) and fixed equipment in the room, including booms and wheels of any
equipment (e.g., carts)
vertical surfaces such as walls and windows as needed to remove visible soiling
ventilation (ducts)
handwashing sinks, scrub and utility areas/sinks
entire floor, including baseboards
Ð take care to move the operating table and any mobile equipment to make sure to reach the
floor areas underneath
Thoroughly clean and disinfect portable patient-care equipment that is not stored within the operating
room before removal from the operating room. Examples include:
suction regulators
anesthesia trolley
compressed gas tanks
x-ray machines
lead gowns
Scheduled basis
(e.g., weekly)
At the same time as daily terminal cleaning, clean and disinfect:
low-touch surfaces not cleaned every day (unless visibly soiled), including:
Ð ceilings
Ð walls
Ð insides of cupboards
Table 13. Recommended Frequency and Process for Operating Rooms (continued)
52
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Environmental Cleaning Supplies and Equipment for the Operating Room (OR):
Have dedicated supplies and equipment for the OR (e.g., mops, buckets).
Use fresh mops/floor cloths and mopping solutions for every cleaning session, including between procedures.
Use fresh cleaning cloths for every cleaning session, regularly replacing them during cleaning and never
double-dipping them into cleaning and disinfectant solutions.
4.6.2 Medication preparation areas
Departments or areas where medication is prepared (e.g., pharmacy or in clinical areas) often service
vulnerable patients in high-risk and critical care areas, in addition to other patient populations.
Responsible Staff
The staff who work in the medication preparation area might be responsible for cleaning and
disinfecting it, instead of the environmental cleaning staff.
Develop detailed SOPs and checklists for each facility to identify roles and responsibilities for
environmental cleaning in these areas.
Table 14. Recommended Frequency and Process for Medication Preparation Areas
Frequency Process
Before and after
every use
Countertops and portable carts used to prepare or transport medications
At least once
every 24 hours
All high-touch surfaces (e.g., light switches, countertops, handwashing sinks, cupboard doors) and floors
Scheduled basis
(e.g., weekly)
Low-touch surfaces, such as the tops of shelves, walls, vents
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
53
Table 15. Recommended Frequency and Process for Sterile Service Departments (SSD)
Frequency Process
Before and after
every use
Utility sinks used for washing medical devices (e.g., endoscopes)
At least
twice daily
All high-touch surfaces (e.g., countertops, surfaces of washing equipment, handwashing sinks) and floors
Scheduled basis
(e.g., weekly)
Low-touch surfaces, such as the tops of shelves, walls, vents
Additional Best Practices for Sterile Service Departments (SSD)
SSDs have two distinct areas, the soiled area (also called dirty area or decontamination area) and the
clean area.
Start daily environmental cleaning with the clean area and finish with the dirty area.
Provide separate environmental cleaning supplies and equipment, including PPE for cleaning staff (e.g.,
reusable rubber gloves, gowns), to prevent cross-contamination between these areas.
If resources permit, assign separate cleaning staff/teams to each area. If not, clean at different times of the
day depending on the workflow.
Find further guidance on environmental cleaning in SSDs here:
Decontamination and Reprocessing of Medical
Devices for Health-care Facilities
(https://www.who.int/infection-prevention/publications/decontamination/en/)
4.6.3 Sterile service departments (SSD)
Departments or areas where semi-critical and critical equipment is sterilized and stored (i.e., sterile services)
often service vulnerable patients in high-risk and critical care areas, in addition to other patient populations.
Responsible Staff
Staff who work in the SSD might be responsible for cleaning and disinfecting it, instead of
environmental cleaning staff. Alternatively, it is possible to train and assign a dedicated
cleaning staff member to this area
Develop detailed SOPs and checklists for each facility to identify roles and responsibilities for
environmental cleaning in these areas
54
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
4.6.4 Intensive care units
Intensive care units (ICUs) are high-risk areas due to the severity of disease and vulnerability of the
patients to develop infections.
Frequency and process is the same for adult, pediatric and neonatal units, but there are specific
considerations for neonatal areas. See Process / Additional guidance in the table below.
Table 16. Recommended Frequency and Process for Intensive Care Units
Frequency Process / Additional guidance
Twice daily and
as needed
Clean and disinfect high-touch surfaces.
Clean floors with neutral detergent and water.
If a neonatal incubator is occupied, clean and disinfect only the outside; only clean (neutral detergent)
on inside.
Ensure that cleaning schedules details responsible staff (e.g., nursing or cleaning staff) for environmental
cleaning of surfaces of noncritical patient care equipment.
Last clean of the day: also clean low-touch surfaces; see
Scheduled cleaning
(page 46)
Scheduled basis
(e.g., weekly)
and when visibly
soiled
Change filters in incubators according to manufacturer’s instructions, when wet or if neonate was on
contact precautions (during terminal clean).
After patient
transfer or
discharge (i.e.,
terminal cleaning)
See
Terminal or discharge cleaning of inpatient wards
(page 45).
Pay special attention to terminal cleaning of incubators.
Pay special attention to ensure reprocessing of noncritical patient care equipment.
Environmental Cleaning Supplies and Equipment for the ICU
Provide dedicated supplies and equipment for the ICU (e.g., mops, buckets) that are not used anywhere else.
Use fresh mops/floor cloths and mopping solutions for every cleaning session.
Use fresh cleaning cloths for surfaces for every cleaning session (at least two per day), regularly replacing
them during cleaning and never double-dipping into cleaning and disinfectant solutions.
4.6.5 Emergency departments
Emergency departments are moderate to high-risk areas because of the wide variability in the condition
of patients and admissions, which can:
increase the probability of contamination of the environment from infectious agents or blood and
body fluids
make them more susceptible to infection (e.g., trauma patients)
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
55
Table 17. Recommended Frequency and Process for Emergency Departments
Area Frequency Process
Waiting / Admission At least once daily (e.g., per 24-
hour period)
High-touch and low-touch surfaces and floors
Consultation /
Examination (low acuity)
After each event/case and at least
twice daily, and as needed
High-touch surfaces
End of the day: entire floor and low-touch surfaces
Procedural (trauma,
critical care)
Before and after (i.e., between
*
)
each procedure
High-touch surfaces, procedure table and floor, inside the
patient zone
Procedural (trauma,
critical care)
End of the day (terminal clean) All surfaces and the entire floor
Handwashing sinks (thoroughly clean (scrub) and disinfect)
Sluice areas/sinks or scrub areas
All Scheduled basis (e.g., weekly,
monthly) and when visibly soiled
See
Scheduled cleaning
(page 46)
Responsible Staff
Because emergency departments are specialized and high-throughput areas, clinical staff
(e.g., nurses) might play an active role in performing environmental cleaning, particularly in
examination and procedural areas.
Develop detailed SOPs, including checklists for each facility to identify roles and responsibilities
for environmental cleaning in these areas.
*
If there is prolonged time between procedures or local conditions that create risk for dust generation/dispersal, re-wipe surfaces with disinfectant solution immediately before
the subsequent procedure.
4.6.6 Labor and Delivery Wards
Labor and delivery wards are routinely contaminated and patients are vulnerable to infection.
Responsible Staff
Because labor and delivery wards are often high-throughput areas, clinical staff
(e.g., nurses) might play an active role in performing environmental cleaning, particularly
between procedures.
Develop detailed SOPs, including checklists, for each facility to identify roles and
responsibilities for environmental cleaning in these areas.
56
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Table 18. Recommended Frequency and Process for Labor and Delivery Wards
Frequency Process
Before and after (i.e., between) every procedure
and at least daily
Remove soiled linens and waste containers for disposal/reprocessing; see
Appendix D – Linen and laundry management
(page 92).
Clean and disinfect:
high-touch surfaces and floors with focus on the patient zone
any surface (e.g., walls) that is visibly soiled with blood or body fluids
After the last delivery (terminal clean) As above
Clean and disinfect other high-touch surfaces (e.g., light switches, door
handles) outside of the patient zone and low-touch surfaces
Clean (scrub) and disinfect handwashing sinks
Clean and disinfect entire floor (move patient bed and other portable
equipment)
Scheduled basis (e.g., weekly, monthly)
See
Scheduled cleaning
(page 46)
4.6.7 Other specialized areas
The areas in this section are higher-risk because of:
high probability of contamination
high patient vulnerability to infection
Responsible Staff
Nursing and cleaning staff might be responsible for cleaning certain areas/items in these
areas, so there must be clearly defined cleaning responsibilities for all surfaces and equipment
(stationary and portable).
Develop detailed SOPs, including checklists, for each facility to identify roles and
responsibilities for environmental cleaning in these areas.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
57
Hemodialysis units include the dialysis stations (chair or bed, table and dialysis machine) for
dialysis treatment.
Table 19. Recommended Frequency and Process for Hemodialysis Units
Frequency Process
Before and after (i.e., between)
every patient
Remove disposable patient care items/waste and reprocess reusable noncritical
patient care equipment; see
“Shared Equipment” in Noncritical patient care
equipment
(page 61).
Clean and disinfect:
all surfaces of the dialysis station/area (e.g., bed/chair, countertops, external
surfaces of the machine) and floors in the patient zone
any surface (e.g., walls) that is visibly soiled with blood or body fluids
After the last patient (terminal clean)
As above
high-touch surfaces (e.g., light switches, door handles, handwashing sinks)
entire floor (move procedure table and other portable equipment)
Scheduled basis (e.g.,
weekly, monthly)
Low-touch surfaces; see
Scheduled cleaning
(page 46).
Burn units house patients with significant burn wounds.
Table 20. Recommended Frequency and Process for Burn Units
Frequency Process
Before and after (i.e., between)
every procedure and twice daily and
as needed
Remove soiled linens and waste containers for disposal/reprocessing; see
Appendix D – Linen and laundry management
(page 92).
Clean and disinfect:
high-touch surfaces and floors with focus on the patient zone
any surface (e.g., walls) that is visibly soiled with blood or body fluids
Last clean of the day: clean and disinfect entire floor and low-touch surfaces
Scheduled basis
See
Scheduled cleaning
(page 46)
58
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Special isolation units house highly immunocompromised patients with specific conditions where white blood
cells are depleted (e.g., bone marrow transplant, leukemia).
Table 21. Recommended Frequency and Process for Special Isolation Units
Frequency Process
Daily, before cleaning any other
patient care area (i.e., first cleaning
session of the day)
Clean and disinfect:
high-touch and low-touch surfaces
any surface (e.g., walls) that is visibly soiled with blood or body fluids
Clean floors with neutral detergent and water
Scheduled basis (e.g., weekly, monthly)
See
Scheduled cleaning
(page 46)
Terminal cleaning
See
Terminal or discharge cleaning of inpatient wards
(page 45)
Pediatric wards (excludes pediatric intensive care units)
Table 22. Recommended Frequency and Process for Pediatric Wards
Area Frequency Process
Pediatric outpatient wards
(waiting/ admission area)
At least daily and as needed
(e.g., visibly soiled, blood/body
fluid spills)
Clean and disinfect:
high-touch and low-touch surfaces and floors
Pediatric outpatient wards
(consultation/examination
area)
After each event/case and
at least twice per day and as
needed
Clean and disinfect:
high-touch surfaces
last clean of day: entire floor and low-touch surfaces
Pediatric outpatient
wards (minor operative/
procedure rooms)
Before and after (i.e., between)
every procedure
Clean and disinfect:
high-touch surfaces and floors in the patient zone/
procedure table; any surface visibly soiled with blood or
body fluids
last clean of the day: other high-touch surfaces and low-
touch surfaces, handwashing sinks and scrub/sluice areas
and the entire floor
Pediatric inpatient wards Same as adult inpatient wards
Same as adult inpatient wards; see
Routine cleaning of
inpatient wards
(page 45) and
Terminal or discharge cleaning
of inpatient wards
(page46)
All pediatric wards Scheduled basis
See
Scheduled cleaning
(page 46)
All pediatric wards After each use and at least daily Clean and disinfect:
toys; for toys that may be put into mouth of infant or
toddler ensure that they are cleaned, disinfected and
rinsed thoroughly after each use
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
59
General procedure rooms (e.g., radiology, endoscopy)
Table 23. Recommended Frequency and Process for General Procedure Rooms
Frequency
Before and after (i.e., between)
every patient
Process
Remove disposable equipment and reprocess reusable noncritical patient care
equipment; see “
Shared Equipment” in Noncritical patient care equipment
(page 61).
Clean and disinfect:
high-touch surfaces (e.g., procedure table/station, countertops, external
surfaces of fixed equipment) and floors with focus on the patient zone
any surface that is visibly soiled with blood or body fluids
After the last patient (terminal clean) As above
Clean and disinfect:
high-touch surfaces (e.g., light switches, door handles, handwashing sinks)
entire floor (move procedure table and other portable equipment)
low-touch surfaces
Scheduled basis (e.g., weekly, monthly)
See
Scheduled cleaning
(page 46).
4.6.8 Transmission-based precaution / Isolation wards
Isolation or cohorted areas with suspected or confirmed cases of infections requiring transmission-based
precautions are considered high-risk areas, particularly for:
environmentally hardy pathogens (e.g., resistant to disinfectants)
multidrug-resistant pathogens that are highly transmissible and/or are associated with high morbidity
and mortality
The three types of transmission-based precautions are:
airborne
contact
droplet
Transmission-specific PPE is required for all cleaning sessions in areas under transmission-
based precautions, according to ii policy or
Table 5
(page 36).
PPE should always be put on and removed following the indications posted /
recommended by IPC.
60
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
A full list of pathogens/infections requiring these precautions are included in CDC’s
Guideline for Isolation Precautions
(https://www.cdc.gov/infectioncontrol/guidelines/isolation/index.html).
These are the best practices for environmental cleaning in transmission-based precaution areas:
Clean these areas after non-isolation areas.
Change environmental cleaning supplies and equipment, including PPE, directly after cleaning these areas.
Ð If resources permit, dedicate supplies and equipment for these areas
Post the type of precaution and required procedures, including required PPE, on visible signage outside the isolation
area, ensuring that these indications are understood by cleaning staff.
Do not bring cleaning carts into the area—keep them at the door and only bring the equipment and supplies
needed for the cleaning process.
Table 24. Recommended Frequency and Process for Airborne Precautions
Frequency Process
At least once daily (e.g., per
24-hour period)
See
Routine cleaning of inpatient wards
(page 45) (only cleaning required)
Unit manager or shift leader should coordinate schedule
Take care to keep the door closed during the cleaning process (ventilation requirement)
After patient transfer or discharge
(terminal clean)
See
Terminal or discharge cleaning of inpatient wards
(page 45)
remove privacy and window curtains for laundering
Unit manager or shift leader should coordinate schedule
Take care to keep the door closed during the cleaning process (ventilation requirement)
Table 25. Recommended Frequency and Process for Contact and Droplet Precautions
Frequency Process
At least twice daily and as needed High-touch surfaces and floors
Any surface (e.g., walls) that is visibly soiled with blood or body fluids
See Cleaning for C. difficile (spore-forming) (below)
Last clean of the day: clean and disinfect low-touch surfaces
After patient transfer or discharge
(terminal clean)
See
Terminal or discharge cleaning of inpatient wards
(page 45)
remove privacy and window curtains for laundering
Cleaning for C. difficile (spore-forming):
Two-step process required:
1. Rigorous mechanical cleaning process (e.g., using friction)
2. Disinfectant with sporicidal properties, for example:
Ð sodium hypochlorite solution (e.g., 1,000ppm or 5,000ppm). See
Appendix E – Chlorine disinfectant solution
preparation
(page 94).
Ð enhanced hydrogen peroxide at 4.5%
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
61
Figure 12: Examples of noncritical patient
care equipment that are high-touch surfaces
Cleaning for Carbapenem-resistant Enterobacteriaceae, Acinetobacter baumannii and
Pseudomonas aeruginosa (CRE-CRAB-CRPsA):
These organisms belong to a group of carbapenem-resistant, gram-negative bacteria of
national and international concern because of their implication as an emerging cause of
severe healthcare-associated infections. In 2017, the World Health Organization published
the first global guidelines for the prevention and control of CRE-CRAB-CRPsA in healthcare
facilities, which include environmental cleaning and disinfection as a key recommendation.
This implementation guide discusses the key elements of environmental cleaning needed for
prevention and control of these organisms:
WHO 2019: Implementation manual to prevent and
control the spread of carbapenem-resistant organisms at the national and health care facility
level [PDF – 98 pages]
(https://apps.who.int/iris/bitstream/handle/10665/312226/WHO-UHC-SDS-2019.6-eng.pdf)
Highly infectious pathogens of epidemic potential, such as those that cause viral hemorrhagic
fevers (e.g., Ebola):
There might be specific cleaning procedures for isolation areas of highly infectious pathogens.
Standalone training programs and strict adherence to required PPE is essential for conducting
effective environmental cleaning in these situations.
Find more information on developing context-specific protocols:
WHO: Infection prevention and control guidance for care of patients in health-care settings,
with focus on Ebola
(https://www.who.int/csr/resources/publications/ebola/filovirus_infection_
control/en/)
WHO | Ebola virus disease: Key questions and answers concerning water, sanitation and hygiene
(https://www.who.int/csr/resources/publications/ebola/water-sanitation-hygiene/en/)
4.7 Noncritical patient care equipment
Portable or stationary noncritical patient care equipment
incudes IV poles, commode chairs, blood pressure cuffs, and
stethoscopes. These high-touch items are:
used by healthcare workers to touch patients
(i.e., stethoscopes)
frequently touched by healthcare workers and patients
(i.e., IV poles)
often shared between patients
Note: Critical and semi-critical equipment
requires specialized reprocessing procedures
and is never the responsibility of environmental
cleaning staff.
62
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
These are the best practices for selection and care of noncritical patient care equipment:
Clean all equipment using the methods and products available at the facility.
All equipment should include detailed written instructions for cleaning and disinfection from the manufacturer,
including pictorial instructions if disassembly is required.
Train the staff responsible for cleaning equipment on procedures before the equipment is placed into use.
In patient care areas, do not purchase, install, or use equipment that cannot be cleaned and disinfected, unless they
can be fitted with plastic (or other material) coverings.
If plastic coverings are protecting difficult-to-clean equipment, clean these items with the same frequency, inspect
coverings for damage on a regular basis, and repair or replace them as needed.
Table 26. Recommended Selection and Care of Noncritical Patient Care Equipment
Type of Equipment Frequency Method Additional Guidance
Shared (e.g., general
inpatient wards)
Before and after
each use
Clean and
disinfect
Select a compatible disinfectant; see
Material
compatibility considerations
(page 63).
Clean and disinfect heavily soiled items (e.g., bedpans)
outside of the patient care area in dedicated
Sluice
rooms
(page 63).
Disinfect bedpans with a washer-disinfector or boiling
water instead of a chemical disinfection process.
Dedicated (e.g.,
transmission-based
precautions, isolation
wards)
According to
frequency of patient
care area (at the
same time as routine
cleaning)
Method based
on the risk
level of the
patient care
area
Select a compatible disinfectant; see
Material
compatibility considerations
(page 63).
Clean and disinfect heavily soiled items (e.g., bedpans)
outside of the patient care area in dedicated
Sluice
rooms
(page 63).
Disinfect bedpans with a washer-disinfector or boiling
water instead of a chemical disinfection process
All After patient transfer
or discharge (i.e.,
terminal cleaning)
Clean and
disinfect
Conduct terminal cleaning of all noncritical patient care
equipment in
Sluice rooms
(page 63).
Responsible Staff
The responsibility for cleaning noncritical patient care equipment might be divided between
cleaning and clinical staff, so it is best practice to clearly define and delineate cleaning
responsibilities for all equipment (stationary and portable).
Develop a cleaning chart or schedule outlining the method, frequency, and staff responsible
for cleaning every piece of equipment in patient care areas and take care to ensure that
both cleaning and clinical staff (e.g., nursing) are informed of these procedures so that
items are not missed.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
63
4.7.1 Material compatibility considerations
A list of compatible cleaning and disinfectant products should be included in manufacturer’s instructions or
provided by the manufacturer upon request.
If manufacturer instructions are not available, here are the applicable material compatibility considerations
and best practices for use of common healthcare disinfectants:
Table 27. Recommended Material Cleaning and Disinfectant Compatibility Considerations
Disinfectant Material compatibility
considerations
Best practices for use on noncritical patient
care equipment
Chlorine/ hypochlorite-based Corrosive to metals Concentration should not exceed 1000 ppm
or 0.1%
Rinse equipment with clean water after disinfection
Alcohols (60-80%) Could deteriorate glues and
cause damage to plastic tubing,
silicone, and rubber
Good for disinfecting small equipment or devices
that can be immersed (e.g., stethoscopes,
thermometers)
4.7.2 Sluice rooms
Each major patient care area should be equipped with a designated sluice room to reprocess soiled
noncritical patient care equipment (e.g., commode chairs, bedpans). Alternatively, there may be central
depots where these procedures are performed.
Sluice rooms should be as close as possible to the patient care areas that they serve and should have an
organized workflow from soiled (dirty) to clean.
The soiled area (used for reprocessing equipment) should be adequately sized and have:
a door that is kept closed at all times and ideally has hands-free operation
a work counter and sluice/utility sink with a hot and cold faucet
a dedicated handwashing sink
space for washers/disinfectors (if resources allow)
PPE available to protect staff during cleaning and disinfecting procedures
The clean area (used for storing reprocessed equipment) should:
be distinctly separate from (by workflow) soiled areas to prevent confusion regarding
reprocessing status
have shelves that are smooth, non-porous and easy to clean
be protected from water and soil, dirt, and dust
be as close as possible to patient areas and easily available to staff
64
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Table 28. Recommended Frequency, Method and Process of Sluice Rooms
Type of Equipment Frequency Method Additional Guidance
Soiled areas At least once daily (e.g.,
per 24-hours period)
Clean and disinfect High-touch and frequently contaminated surfaces,
including work counters and sinks, and floors
(floors only require cleaning)
Clean area At least once daily (e.g.,
per 24-hours period)
Clean Horizontal surfaces and floors
Clean equipment should be covered or removed
during cleaning process
Both Scheduled basis (e.g.,
weekly) and when
visibly soiled
Clean Low-touch surfaces (e.g., vents, tops of cupboards)
4.8 Methods for assessment of cleaning and cleanliness
It is best practice to perform routine, standardized assessments of environmental cleaning (i.e., practices, level of
cleanliness) in order to:
ensure that environmental cleaning procedures are being performed according to best practices and facility policy
use results to inform program improvement (e.g., training, resource allocation)
This section includes an overview of the available methods, as well as their advantages and disadvantages. The best
practices for developing a system of routine monitoring, audit and feedback within environmental cleaning program
implementation are covered in
Monitoring, feedback, and audit elements
(page 23).
Methods for assessing cleaning practice include (
Table 29
below):
direct performance observations
visual assessment
fluorescent markers
Methods for assessing the level of cleanliness include (
Table 30
below):
measuring the residual bioburden (i.e., ATP)
taking a bacteriological culture of the surface itself using a swab or contact agar plate method
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
65
Table 29. Advantages and Disadvantages of Monitoring Methods for Assessing Cleaning Practice:
Adherence to Cleaning Procedures
Method Advantages Disadvantages
Performance observations:
observers (e.g., cleaning
supervisors) use standardized
perform structured observations
using checklists that are specific to
individual patient care areas. The
goal is to rate the effectiveness of
cleaning staff and adherence to the
SOP (such as identifying the number
of steps performed correctly).
Can be used for large areas
(units, wards)
Easy to implement
Benchmarking is possible
Simple and inexpensive
Allows immediate and direct
feedback to individual staff
Encourages cleaning staff
engagement and input
Identifies gaps for staff training/
job aid improvements
Subjective—difficulty in standardizing
methodology and assessment across observers
Labor-intensive
Results affected by Hawthorne bias (i.e., more of
an assessment of knowledge than actual practice)
Does not assess or correlate to bioburden
Visual assessment of cleanliness:
after an area has been cleaned,
observers check the cleanliness
of items. For example, using a
gloved hand, wipe surfaces to
inspect for dust.
Can be applied to entire facility or
specific units/wards
Easy to implement
Benchmarking is possible
Inexpensive
Allows immediate and direct
feedback to individual staff
Could be delay in feedback dependent on method
used to compile results
Subjective—based on individual determinations
of dust/debris levels
Does not assess or correlate to bioburden
Fluorescent markers (e.g., UV
visible): a tracing agent (e.g.,
fluorescent material, chemical
tracer) marks predetermined items
and surfaces before cleaning. After
cleaning, a trained observer uses
a detecting agent (e.g., ultraviolet
light, enzymatic detector) to
determine if any tracing agent is
left. The observer counts the items
that still show tracing agent and
gives a score based on how many
were cleaned completely, partially,
or not at all.
Quick
Provides immediate feedback on
performance
Minimal training required to
perform
Objective
Benchmarking is possible
Relatively inexpensive
Does not assess or correlate to bioburden
Labor-intensive as surfaces should be marked
before cleaning and checked after cleaning has
been completed
Some difficulties documented in terms of removal
of markers from porous or rough surfaces (e.g.,
canvas straps)
Time-intensive
Need to vary frequency and objects to prevent
monitoring system from becoming known
66
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Table 30. Advantages and Disadvantages of Monitoring Methods for Assessing Cleanliness:
Effectiveness of Cleaning Procedures
Method Advantages Disadvantages
ATP bioluminescence:
detection of ATP indicates that
organic material (microbial or
biologic) is present on an object or
surface. Objects are tested before
and after cleaning to determine
the effectiveness of a cleaning
procedure. A numeric score can
be generated based on the
proportion of marked surfaces/
objects that were under the
pre-determined threshold.
Quick
Provides immediate feedback
Minimal training required to
perform
Objective
Expensive
Low sensitivity and specificity
Lacks a standardized threshold or benchmark
for determining the level or status of cleanliness
(i.e., “safe” post-cleaning ATL levels) for specific
surfaces or patient care areas
Variable benchmarks
Technology constantly changing
Interference of cleaning products, supplies and
in some cases surfaces, which can both reduce
or enhanced ATP levels (e.g., bleach, microfiber,
stainless steel)
Environmental cultures:
the only direct measurement of
levels of microbial contamination
after cleaning. In this process,
cultures are taken (by swabbing
or use of RODAC or contact agar
plates) after an item is cleaned.
Swabbing can indicate the presence
of a specific bacteria on a surface.
Contact agar plates can show the
level of bacterial contamination
on an area of a large, flat surface.
High sensitivity and specificity
Provides direct indication of
presence of specific pathogens
(direct swab cultures)
May be useful for identifying
source of outbreaks and/or
environmental reservoirs
Objective
Not recommended for routine use
Expensive
Prolonged time for results (>48hrs)
Requires access to laboratory resources and
trained personnel for interpreting results
Lack of defined threshold or benchmark for
determining the level or status of cleanliness (e.g.,
colony-forming units per surface area)
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
67
5. Conclusion and Way Forward
The importance of environmental cleaning as a fundamental IPC intervention cannot be overstated. Environmental
contamination plays a role in transmission of HAIs, which are a significant burden globally and disproportionately affect those in
resource-limited settings.
The best practices contained in this document provide the framework for implementing effective environmental cleaning
procedures and programs in healthcare facilities in resource-limited settings. While they are structured to be most relevant for
resource-limited settings, implementing all the best practices for cleaning supplies and equipment, cleaning procedures, and,
most importantly, for cleaning programs will require a strong and sustained commitment, including dedicated staff time and
resources. Strong leadership support for environmental cleaning and recognition of the important role that it plays in IPC is a
critical prerequisite to implementing these best practices.
It is important that environmental cleaning is implemented within the framework of a functional IPC program, while ensuring
that a multi-sectorial approach is taken to enable engagement and coordination across the various sectors (e.g., WASH) that
have a role to play to ensure a functional and effective cleaning program.
A toolkit for guiding the implementation of these best practices is currently under development. It will use the step-wise
approach that IPC improvement programs use extensively. It will also address the need to prioritize actions that target the
highest transmission risk based on environmental contamination and patient vulnerability, as well as the foundational program
elements which are needed first in order to build an effective and robust environmental cleaning program over time.
Further reading
Best Practices from high-resource settings
1. Healthcare Infection Control Practices Advisory Committee (HICPAC).
Guidelines for Environmental Infection Control in
Health-Care Facilities
. 2003. Available from: https://www.cdc.gov/infectioncontrol/guidelines/environmental/index.html
2. Ontario Agency for Health Protection and Promotion (Public Health Ontario), Provincial Infectious Diseases Advisory
Committee.
Best practices for environmental cleaning for prevention and control of infections in all health care settings. 3rd
ed. [PDF - 250 pages]
. Toronto, ON: Queen’s Printer for Ontario; 2018. Available from: https://www.publichealthontario.ca/
en/eRepository/Best_Practices_Environmental_Cleaning.pdf
3. The Provincial Infection Control Network of British Columbia (PICNet).
British Columbia Best Practices for Environmental
Cleaning for Prevention and Control of Infection in All Healthcare Settings and Programs [PDF - 158 pages]
. 2016. Available
from: https://www.picnet.ca/wp-content/uploads/British-Columbia-Best-Practices-for-Environmental-Cleaning-for-
Prevention-and-Control-of-Infections-in-All-Healthcare-Settings-and-Programs.pdf
4. National Patient Safety Agency (England and Wales) –
The revised health care cleaning manual 2009
. Available from:
https://www.hygiena.com/fr/doc_download/166-the-revised-healthcare-cleaning-manual
5. Government of South Australia.
Cleaning Standards for Healthcare Facilities
. 2017. Available from:
https://www.sahealth.sa.gov.au/wps/wcm/connect/public+content/sa+health+internet/resources/
cleaning+standard+for+south+australian+healthcare+facilities
Targeted training package for cleaning staff, generated for resource-limited settings
6. Soapbox Collaborative, UK.
TEACH CLEAN
. 2019. Available from: https://www.lshtm.ac.uk/research/centres/march-centre/
soapbox-collaborative/teach-clean
68
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
References
1. Allegranzi B, Begheri Nejad S, Combescure C, Graafmans W, Attar H, Donaldson L, Pittet D. 2011. Burden of endemic
health-care-associated infection in developing countries: systematic review and meta-analysis. The Lancet; 377:9761.
2. Weber DJ, Rutala WA, Miller MB, et al. 2010. Role of hospital surfaces in the transmission of emerging healthcare-
associated pathogens: norovirus, Clostridium difficile, and Acinetobacter species. Am J Infect Control 38:S25–S33.
3. Otter JA, Yezlli S, Salkeld J, French G. 2013. Evidence that contaminated surfaces contribute to the transmission of
hospital pathogens and an overview of strategies to address contaminated surfaces in hospital settings. American Journal
of Infection Control; 41: S6-S11.
4. Huang SS, Datta R, Platt R. 2006. Risk of acquiring antibiotic-resistant bacteria from prior room occupants. Archs Intern
Med; 166:1945-1951.
5. Drees M, Snydman DR, Schmid CH, et al. 2008. Prior environmental contamination increases the risk of acquisition of
vancomycin-resistant enterococci. Clin Infect Dis; 46:678-685.
6. Nseir S, Blazejewski C, Lubret R, Wallet F, Courcol R, Durocher A. 2011. Risk of acquiring multidrug-resistant Gram-
negative bacilli from prior room occupants in the intensive care unit. Clin Microbiol Infect; 17:1201-1208.
7. Datta R, Platt R, Yokoe DS, Huang SS. 2011. Environmental cleaning intervention and risk of acquiring multidrug-resistant
organisms from prior room occupants. Archs Intern Med; 171:491-494.
8. Shaughnessy MK, Micielli RL, DePestel DD, et al. 2011. Evaluation of hospital room assignment and acquisition of
Clostridium difficile infection. Infect Control Hosp Epidemiol; 32:201-206.
9. Ajao AO, Johnson K, Harris AD, et al. 2013. Risk of acquiring extended spectrum b-lactamase-producing Klebsiella
species and Escherichia coli from prior room occupants in the intensive care unit. Infect Control Hosp Epidemiol; 34:453-
458.
10. Mitchell BG, Digney W, Ferguson JK. 2014. Prior room occupancy increases risk of methicillin-resistant Staphylococcus
aureus acquisition. Healthcare Infect; 19:135-140.
11. Kramer A, Schwebke I, Kampf G. 2006. How long do nosocomial pathogens persist on inanimate surfaces? A systematic
review. BMC Infect Dis; 6:130.
12. Dancer SJ. 2014. Controlling hospital-acquired infection: focus on the role of the environment and new technologies for
decontamination. Clin Microbiol Rev; 27:665-690.
13. Falk PS, Winnike J, Woodmansee C, Desai M, Mayhall CG. 2000. Outbreak of vancomycin-resistant enterococci in a burn
unit. Infect Control Hosp Epidemiol 21:575-82.
14. Rampling A, Wiseman S, Davis L, Hyett AP, Walbridge AN, Payne GC, et al. 2001. Evidence that hospital hygiene is
important in the control of methicillin-resistant Staphylococcus aureus. J Hosp Infect 49:109-16.
15. Wilcox M., Fawley W., Wigglesworth N., Parnell P., Verity P., Freeman J. (2003) Comparison of the effect of detergent
versus hypochlorite cleaning on environmental contamination and incidence of Clostridium difficile infection. J Hosp Infect
54: 109–114.
16. Denton M, Wilcox MH, Parnell P, Green D, Keer V, Hawkey PM, et al. 2004. Role of environmental cleaning in controlling
an outbreak of Acinetobacter baumannii on a neurosurgical intensive care unit. J Hosp Infect 56:106-10.
17. Hayden MK, Bonten MJ, Blom DW, Lyle EA, van de Vijver DA, Weinstein RA. 2006. Reduction in acquisition of
vancomycin-resistant enterococcus after enforcement of routine environmental cleaning measures. Clin Infect Dis
42:1552-60.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
69
18. McMullen K., Zack J., Coopersmith C., Kollef M., Dubberke E., Warren D. (2007) Use of hypochlorite solution to decrease
rates of Clostridium difficile-associated diarrhea. Infect Control Hosp Epidemiol 28: 205–207.
19. Dancer SJ, White LF, Lamb J, Girvan EK, Robertson C. 2009. Measuring the effect of enhanced cleaning in a UK hospital:
a prospective cross-over study. BMC Med 7:28.
20. Wilson AP, Smyth D, Moore G, Singleton J, Jackson R, Gant V, et al. 2011. The impact of enhanced cleaning within the
intensive care unit on contamination of the near-patient environment with hospital pathogens: a randomized crossover
study in critical care units in two hospitals. Crit Care Med 39:651-8.
21. Grabsch EA, Mahony AA, Cameron DR, Martin RD, Heland M, Davey P, et al. 2012. Significant reduction in vancomycin-
resistant Enterococcus colonization and bacteraemia after introduction of a bleach-based cleaning-disinfection
programme. J Hosp Infect 82:234-42.
22. Mitchell BG, Hall L, White N, Barnett AG, Halton K, Paterson DL, Riley TV, Gardner A, Page K, Farrington A, Gericke
CA, Graves N. 2019. An environmental cleaning bundle and health-care-associated infections in hospitals (REACH):
a multicenter, randomized trial. The Lancet Infectious Diseases. Available from: https://doi.org/10.1016/S1473-
3099(18)30714-X.
23. WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (JMP), 2019. WASH in Health Care
Facilities: Global Baseline Report 2019. WHO:Geneva. Available from: https://www.who.int/water_sanitation_health/
publications/wash-in-health-care-facilities-global-report/en/.
24. Rutala WA, Weber DJ. 2016. Monitoring and improving the effectiveness of surface cleaning and disinfection. American
Journal of Infection Control 44: e69-e76.
70
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
71
Appendix A – Risk-assessment for determining
environmental cleaning method and frequency
[Reproduced directly from PIDAC, 2018]
Step 1: Categorize the risk factors that determine the need for environmental cleaning:
Probability of Contamination with Pathogens
Heavy Contamination (score = 3)
An area is designated as being heavily contaminated if surfaces and equipment are routinely exposed to copious amounts of fresh
blood or other body fluids (e.g., birthing suite, autopsy suite, cardiac catheterization laboratory, hemodialysis station, emergency
room, client/patient/resident bathroom if visibly soiled).
Moderate Contamination (score = 2)
An area is designated as being moderately contaminated if surfaces and equipment do not routinely (but may) become
contaminated with blood or other body fluids and the contaminated substances are contained or removed (e.g., wet sheets). All
client/patient/resident rooms and bathrooms should be considered to be, at a minimum, moderately contaminated.
Light Contamination (score = 1)
An area is designated as being lightly contaminated if surfaces are not exposed to blood, other body fluids or items that have
come into contact with blood or body fluids (e.g., lounges, libraries, offices).
Vulnerability of Population to Infection
More Susceptible (score = 1)
Susceptible clients/patients/residents are most susceptible to infection because of their medical condition or lack of immunity.
These include those who are immunocompromised (oncology, transplant and chemotherapy units), neonates (level 2 and 3
nurseries), and those who have severe burns (i.e., requiring care in a burn unit).
Less Susceptible (score = 0)
For the purpose of risk stratification for cleaning, all other individuals and areas are classified as less susceptible.
Potential for Exposure
High-touch surfaces (score = 3):
High-touch surfaces have frequent contact with hands. Examples include doorknobs, telephone, call bells, bedrails, light switches,
wall areas around the toilet and edges of privacy curtains.
Low-touch surfaces (score = 1):
Low-touch surfaces have minimal contact with hands. Examples include walls, ceilings, mirrors.
72
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Step 2: Determine the total risk stratification score:
The frequency of cleaning is based on the factors listed above. A score is given if the factors are present, and the frequency of
cleaning is based on the total score as derived in the following matrix:
Appendix A Table 1. Risk Stratification Scores for High-Touch Surfaces (Score for Potential
for Exposure = 3)
Probability of contamination
with pathogens
More susceptible population
(score = 1)
Less susceptible population
(score = 0)
Heavy (score = 3) 7 (3+3+1) 6 (3+3+0)
Moderate (score = 2) 6 (3+2+1) 5 (3+2+0)
Light (score = 1) 5 (3+1+1) 4 (3+1+0)
Appendix A Table 2. Risk Stratification Scores for Low-Touch Surfaces (Score for Potential
for Exposure = 1)
Probability of contamination
with pathogens
More susceptible population
(score = 1)
Less susceptible population
(score = 0)
Heavy (score = 3) 5 (1+3+1) 4 (1+3+0)
Moderate (score = 2) 4 (1+2+1) 3 (1+2+0)
Light (score = 1) 3 (1+1+1) 2 (1+1+0)
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
73
Step 3: Determine the cleaning frequency based on the risk stratification matrix:
Cleaning frequencies for each patient care area are derived from the total score that results from the risk stratification matrix above.
Appendix A Table 3. Cleaning Frequencies Based on Total Risk Score
Total Risk Score Risk Type Minimum Cleaning Frequency
7 High Risk Clean after each case/event/procedure and clean additionally as required
4–6 Moderate Risk Clean at least once daily
Clean additionally as required (e.g., gross soiling)
2–3 Low Risk Clean according to a fixed schedule
Clean additionally as required (e.g., gross soiling)
Appendix A Table 4. Patient Care Area Examples
Location
Probability of
Contamination
Potential for
Exposure
Vulnerability
of Population
Total
Score
Minimum Cleaning Frequency
Burn
Unit
2–3 3 1 6–7 Clean after each case/event/procedure,
at least twice daily and clean additionally
as required
General
inpatient
1–2 3 0 4–5 Clean at least once daily and clean
additionally as required
74
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Appendix B1 – Cleaning procedure summaries for
general patient areas
General outpatient area (Adult)
This is a low-risk area because the probability of contamination and the vulnerability of the patients to infection is low; however,
procedural areas are moderate risk and therefore require more frequent and rigorous environmental cleaning.
Appendix B Table 1. Cleaning Procedure Summaries for General Outpatient Areas (Adult)
Area Description Frequency Person / Staff
Responsible
Products/Technique Additional Guidance /
Description of Cleaning
Waiting/
admission areas
(Adult)
At least daily Cleaning staff Clean (neutral detergent
and water):
high-touch surfaces
floors
In addition, clean low-touch
surfaces on a scheduled basis
(e.g., weekly)
Consultation/
examination
areas (Adult)
At least twice
per day
Shared cleaning
possible: clinical and
cleaning staff
Clean (neutral detergent
and water):
high-touch surfaces
Last clean of the day: clean
the entire floor with neutral
detergent and water
In addition, clean low-touch
surfaces on a scheduled basis
(e.g., weekly)
Minor operative
procedure rooms
Before and after
(i.e., between)
every procedure
Shared cleaning
possible: clinical and
cleaning staff
Clean and disinfect:
any surface visibly soiled
with blood or body fluids
high-touch surfaces in
the patient zone
floors in the patient zone
Last clean of the day
clean and disinfect:
other high-touch surfaces
low-touch surfaces
handwashing sinks
scrub/sluice areas
the entire floor
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
75
General inpatient area (Adult)
This is a low-risk area because the probability of contamination and the vulnerability of the patients to infection is low.
Appendix B Table 2. Cleaning Procedure Summaries for General Inpatient Areas (Adult)
Type of Clean Frequency
Person / Staff
Responsible
Products/Technique
Additional Guidance / Description
of Cleaning
Routine clean At least daily Cleaning staff Clean (neutral detergent
and water):
high-touch surfaces
in the patient zone
handwashing sinks
floors
In addition, clean low-touch surfaces
on a scheduled basis (e.g., weekly)
Terminal clean At patient
discharge or
transfer
Shared cleaning
possible: clinical
and cleaning staff
Clean and disinfect:
high-touch surfaces
low-touch surfaces
floors
1. Remove soiled/used personal
care items (e.g., cups, dishes) for
reprocessing or disposal.
2. Remove facility-provided linens
for reprocessing or disposal; see
Appendix D – Linen and laundry
management
(page 92).
3. Inspect window treatments. If
soiled, clean blinds on-site, and
remove curtains for laundering.
4. Reprocess all reusable (noncritical)
patient care equipment; see
Noncritical patient care equipment
(page 61).
5. Clean and disinfect all low- and
high-touch surfaces, including
those that may not be accessible
when the room/area was occupied
(e.g., patient mattress, bedframe,
tops of shelves, vents), and floors.
6. Clean (scrub) and disinfect
handwashing sinks.
76
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Patient area toilets
These are high-risk areas because they have high patient exposure, are frequently contaminated, and therefore pose a higher risk
of pathogen transmission than other general patient areas.
Appendix B Table 3. Cleaning Procedure Summaries for Patient Area Toilets
Area
Description
Frequency
Person / Staff
Responsible
Products/Technique
Additional Guidance / Description
of Cleaning
Toilets for
general inpatient
and outpatient
areas; frequently
used by visitors,
family members
At least once
daily (private
patient room)
At least twice
daily (public/
shared toilets)
and as needed
Cleaning staff Clean and disinfect:
high-touch/frequently
contaminated surfaces
Ð handwashing sinks
Ð faucets
Ð handles
Ð toilet seat
Ð door handles
floors
any surface visibly
soiled with blood or
body fluids
In addition, clean low-touch surfaces on
a scheduled basis (e.g., weekly).
Patient area floors
Floors in general inpatient and outpatient areas generally have low patient exposure (i.e., are low-touch surfaces) and pose a low
risk for pathogen transmission.
Appendix B Table 4. Cleaning Procedure Summaries for Patient Area Floors
Area
Description
Frequency
Person / Staff
Responsible
Products/Technique
Additional Guidance / Description
of Cleaning
Floors in general
inpatient and
outpatient areas,
always cleaned
last after other
environmental
surfaces
At least daily Cleaning staff Clean (neutral detergent
and water):
clean to dirty, systematic
manner (figure-eight
pattern, regularly rinse
in rinse bucket)
Floors may require, depending on the
risk-level in a specific patient care area:
more frequent cleaning
use of a disinfectant
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
77
Spills of blood or body fluids
Regardless of the risk-level of an area, spills or contamination from blood or body fluid (e.g., vomitus) must be cleaned and
disinfected immediately using a two-step process.
Appendix B Table 5. Cleaning Procedure Summaries for Spills of Blood or Body Fluids
Area
Description
Frequency
Person / Staff
Responsible
Products/Technique
Additional Guidance /
Description of Cleaning
Any spill in any
patient or non-
patient area
Immediately,
as soon as
possible
Cleaning staff
1. Wear appropriate PPE; see
Table 5
(page 36).
2. Confine the spill and wipe it
up immediately with absorbent
(paper) towels, cloths, or absorbent
granules (if available) that are
spread over the spill to solidify the
blood or body fluid (all should then
be disposed as infectious waste).
3. Clean (neutral detergent and water).
4. Disinfect using a facility-approved
intermediate-level disinfectant.
5. Immediately reprocess all reusable
supplies and equipment (e.g.,
cleaning cloths, mops) after the spill
is cleaned up.
Mark off spill area to prevent
contact,
as well as accidental
slips and falls
78
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Appendix B2 – Cleaning procedure summaries for
specialized patient areas
Operating room
These are high-risk specialized patient areas with a mechanically controlled atmosphere where surgical procedures are
performed. A high degree of asepsis is required because the vulnerability of the patients to infection is high.
Appendix B2 Table 1. Cleaning Procedure Summaries for Operating Room
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description
of Cleaning
Before first
procedure
Shared cleaning
possible:
perioperative nursing
/ clinical staff and
cleaning staff
Disinfect:
horizontal surfaces
Ð furniture
Ð surgical lights
Ð operating bed
Ð stationary equipment
See
Operating rooms
(page 50)
Records of previous evening terminal
clean required; if not or if no surgeries
on the day prior, perform terminal clean
(as below)
Before and after
every procedure
Shared cleaning
possible:
perioperative nursing
/ clinical staff and
cleaning staff
Clean and disinfect:
high-touch surfaces (e.g., light
switches, door knobs) outside
surgical field
any surface visibly soiled with
blood or body fluids
all surfaces and noncritical
equipment and the floor inside
the surgical field
See
Operating rooms
(page 50)
Remove all used linen and surgical
drapes, waste (including used suction
canisters, ¾ filled sharps containers),
and kick buckets, for reprocessing
or disposal
Portable noncritical (e.g., compressed
gas tanks, x-ray machine) equipment
should be thoroughly cleaned
and disinfected before and after
each procedure
After last procedure
(terminal clean)
Shared cleaning
possible:
perioperative nursing
/ clinical staff and
cleaning staff
Clean and disinfect:
all surfaces and noncritical
equipment in the operating room
the entire floor
any surface visibly soiled with blood
or body fluids
scrub and utility areas/sinks
See
Operating rooms
(page 50)
Take care to move the operating table
and any mobile equipment to make
sure that the floor areas underneath are
thoroughly cleaned and disinfected
Clean and disinfect low-touch surfaces,
(e.g., the insides of cupboards and
ceilings/walls) on a scheduled basis
(e.g., weekly)
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
79
Medication preparation areas
Areas where medication is prepared (including pharmacy or in clinical areas) are high-risk areas in which high degree
of asepsis is required.
Appendix B2 Table 2. Cleaning Procedure Summaries for Medication Preparation Areas
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description
of Cleaning
Between uses Clinical staff Clean and disinfect:
countertops
portable carts used to transport or
prepare medications
None
End of each day Shared cleaning
possible (clinical
staff and cleaning
staff)
Clean and disinfect:
all high-touch surfaces
floors
Clean and disinfect low-touch surfaces,
such as the tops of shelves and walls/
vents, on a scheduled basis (e.g.,
weekly)
Sterile services areas
Areas where semi-critical and critical equipment is sterilized and stored in which high degree of asepsis is required.
Appendix B2 Table 3. Cleaning Procedure Summaries for Sterile Services Areas
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description
of Cleaning
Before and after
every use
Clinical staff Clean and disinfect:
utility sinks used for washing
semi-critical equipment
(e.g., endoscopes)
None
Twice daily Shared cleaning
possible (clinical
staff and cleaning
staff)
Clean and disinfect:
all high-touch surfaces
Ð countertops
Ð surfaces of washing equipment
Ð handwashing sinks
floors
Clean and disinfect low-touch surfaces,
such as the tops of shelves and walls/
vents, on a scheduled basis (e.g.,
weekly) during the final
daily clean
80
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
ICU (adult, pediatric, neonatal)
These are high-risk areas because patients may be immuno-compromised by underlying diseases, treatment modalities (e.g.,
invasive devices) and other life-threatening conditions (e.g., major trauma, stroke) and vulnerability to infection is high.
Appendix B2 Table 4. Cleaning Procedure Summaries for ICU (adult, pediatric, neonatal)
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description of
Cleaning
Twice daily and
as needed
Cleaning staff Clean and disinfect:
high-touch surfaces (only
outside of neonatal incubator
when occupied)
Clean:
floors with neutral detergent
and water
Last clean of the day: clean low-touch surfaces
At discharge/
transfer (terminal
clean)
Cleaning staff Clean and disinfect:
high-touch surfaces
low-touch surfaces
floors
1. Remove soiled/used personal care items (e.g.,
cups, dishes) for reprocessing or disposal.
2. Remove facility-provided linens for
reprocessing or disposal.
3. Inspect window treatments. If soiled, clean
blinds on-site, and remove curtains for
laundering.
4. Reprocess all reusable (noncritical) patient
care equipment.
5. Clean and disinfect all low- and high-touch
surfaces, including those that may not be
accessible when the room/area was occupied
(e.g., patient mattress, bedframe, tops of
shelves, vents), and floors.
6. Clean (scrub) and disinfect handwashing
sinks.
Pay special attention to terminal cleaning of
incubators.
Change filters in incubators according to
manufacturer’s instructions, when wet or if neonate
was on contact precautions (during terminal clean).
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
81
Special isolation units
These are high-risk areas in which patients are highly immunosuppressed (e.g., bone marrow transplant, leukemia) and
vulnerability to infection is high.
Appendix B2 Table 5. Cleaning Procedure Summaries for Special Isolation Units
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description of
Cleaning
Daily, before
cleaning any other
patient care area
(i.e., first cleaning
session of the day)
Shared cleaning
possible (clinical
staff and cleaning
staff)
Clean and disinfect:
high-touch surfaces, with focus on
the patient zone
Clean:
floors with neutral detergent
and water
In addition, clean low-touch surfaces
At discharge/
transfer (terminal
clean)
Cleaning staff Clean and disinfect:
high-touch surfaces
low-touch surfaces
floors
1. Remove soiled/used personal
care items (e.g., cups, dishes) for
reprocessing or disposal.
2. Remove facility-provided linens for
reprocessing or disposal.
3. Inspect window treatments. If soiled,
clean blinds on-site, and remove
curtains for laundering.
4. Reprocess all reusable (noncritical)
patient care equipment.
5. Clean and disinfect all low- and
high-touch surfaces, including those
that may not be accessible when the
room/area was occupied (e.g., patient
mattress, bedframe, tops of shelves,
vents), and floors.
6. Clean (scrub) and disinfect
handwashing sinks.
82
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Burn units
These are high-risk units where vulnerability of the patients to infection (immunocompromised) and probability of contamination
(e.g., with blood and body fluids) are high.
Appendix B2 Table 6. Cleaning Procedure Summaries for Burn Units
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description
of Cleaning
Before and after
(i.e., between) every
procedure and
twice daily and
as needed
Shared cleaning
possible (clinical
staff and cleaning
staff)
Clean and disinfect:
high-touch surfaces and floors,
focus on the patient zone
any surface visibly soiled with
blood or body fluids
Remove soiled linens and waste containers
for disposal/reprocessing
Last clean of the day: clean and disinfect
entire floor and low-touch surfaces
At discharge/
transfer (terminal
clean)
Cleaning staff Clean and disinfect:
high-touch surfaces
low-touch surfaces
entire floor
1. Remove soiled/used personal
care items (e.g., cups, dishes) for
reprocessing or disposal.
2. Remove facility-provided linens for
reprocessing or disposal.
3. Inspect window treatments. If soiled,
clean blinds on-site, and remove
curtains for laundering.
4. Reprocess all reusable (noncritical)
patient care equipment.
5. Clean and disinfect all low- and
high-touch surfaces, including those
that may not be accessible when the
room/area was occupied (e.g., patient
mattress, bedframe, tops of shelves,
vents), and the entire floor.
6. Clean (scrub) and disinfect
handwashing sinks.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
83
General procedure areas
These are high-risk areas (such as such as radiology and endoscopy services) because they often service patients with high
vulnerability to infection (e.g., immunosuppressed), in addition to other patient populations.
Appendix B2 Table 7. Cleaning Procedure Summaries for General Procedure Areas
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description
of Cleaning
Before and after
every procedure
Clinical staff Clean and disinfect:
any surface that is visibly soiled
with blood or body fluids
high-touch surfaces inside the
patient zone
Ð procedure table/station
Ð counter tops
Ð external surfaces of
fixed equipment
floors inside the patient zone
Remove disposable equipment and
reprocess reusable noncritical patient
care equipment; see
Noncritical patient
care equipment
(page 61)
After last patient of
the day (terminal
clean)
Shared cleaning
possible (clinical
staff and cleaning
staff)
Clean and disinfect:
all high-touch and low-touch
surfaces
entire floor
Move the procedure table and other
portable equipment to clean and
disinfect the entire floor area
Handwashing sinks should be
thoroughly cleaned (scrubbed)
and disinfected
84
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Labor and delivery wards/rooms
These are high-risk areas because they are routinely contaminated and vulnerability of patients to infection is high.
Appendix B2 Table 8. Cleaning Procedure Summaries for Labor and Delivery Wards/Rooms
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description
of Cleaning
Before and after
(i.e., between) every
procedure
Shared cleaning
possible (clinical
staff and cleaning
staff)
Clean and disinfect:
any surface that is visibly soiled with
blood or body fluids
high-touch surfaces inside the
patient zone
floor inside the patient zone
Remove soiled linens and waste
containers for disposal/reprocessing
After last delivery
of the day (terminal
clean)
Cleaning staff Clean and disinfect:
any surface that is visibly soiled
with blood or body fluids
all high-touch and low-touch
surfaces
entire floor
Move the procedure table and other
portable equipment to clean and
disinfect the entire floor area
Handwashing sinks should be
thoroughly cleaned (scrubbed)
and disinfected
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
85
Hemodialysis stations/areas
These are high-risk areas because they are routinely contaminated and vulnerability of patients to infection is high.
Appendix B2 Table 9. Cleaning Procedure Summaries for Hemodialysis Stations/Areas
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance / Description
of Cleaning
After each event/
case
Shared cleaning
possible (clinical
staff and cleaning
staff)
Clean and disinfect:
any surface that is visibly soiled with
blood or body fluids
all surfaces of the dialysis
station area
Ð bed
Ð chair
Ð countertops
Ð external surfaces of the machine
floor inside the patient zone
Remove disposable patient care items/
waste and reprocess reusable patient
care equipment per below
Take care to allow enough contact time
before the next subsequent use of the
station/area
After last case of
the day (terminal
clean)
Cleaning staff Clean and disinfect:
any surface that is visibly soiled with
blood or body fluids
all surfaces of the dialysis
station/area
high-touch surfaces in the area/room
housing hemodialysis stations
entire floor
Move the procedure table and other
portable equipment to clean and
disinfect the entire floor area
In addition, clean low-touch surfaces
on a scheduled basis (e.g., weekly)
86
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Pediatric outpatient area
These are high risk areas because they are frequently contaminated and pediatric patients are more vulnerable to infection due to
pathogens such as enteric viruses and influenza.
Appendix B2 Table 10. Cleaning Procedure Summaries for Pediatric Outpatient Area
Area
Description
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance /
Description of Cleaning
Waiting /
admission areas
At least daily and
as needed (e.g.,
visibly soiled,
blood/body fluid
spills)
Cleaning staff Clean and disinfect:
high-touch and low-touch
surfaces
floors
Toys that may be put into mouth of
infant or toddler must be cleaned,
disinfected and rinsed thoroughly
after each use
Consultation /
examination areas
After each event/
case and at least
twice per day and
as needed
Shared cleaning
possible (clinical
staff and
cleaning staff)
Clean and disinfect:
high-touch surfaces
Last clean of the day: clean and
disinfect the entire floor and low-
touch surfaces
Minor operative
procedure rooms
Before and after
(i.e., between)
every procedure
Shared cleaning
possible (clinical
staff and
cleaning staff)
Clean and disinfect:
any surface visibly soiled
with blood or body fluids
high-touch surfaces in the
patient zone
floors in the patient zone
Last clean of the day:
clean and disinfect:
other high-touch surfaces
and low-touch surfaces
handwashing sinks
scrub/sluice areas
the entire floor
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
87
Emergency department:
These are moderate to high-risk areas because of the number of people who could contaminate the environment and because
some patients may be more susceptible to infection (e.g., trauma patients).
Appendix B2 Table 11. Cleaning Procedure Summaries for Emergency Department
Area
Description
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance /
Description of Cleaning
Waiting /
admission areas
At least daily and
as needed (e.g.,
visibly soiled,
blood/body fluid
spills)
Cleaning staff Clean and disinfect:
high-touch and low-touch
surfaces
floors
None
Consultation/
examination
areas
After each event/
case and at least
twice per day and
as needed
Shared cleaning
possible (clinical
staff and
cleaning staff)
Clean and disinfect:
high-touch surfaces
Last clean of the day: clean and
disinfect the entire floor and low-
touch surfaces
Procedure areas
include trauma
areas for high
acuity patients
Before and after
(i.e., between)
every procedure
Shared cleaning
possible (clinical
staff and
cleaning staff)
Clean and disinfect:
any surface visibly soiled
with blood or body fluids
high-touch surfaces in the
patient zone
floors in the patient zone
Last clean of the day:
clean and disinfect:
other high-touch surfaces and
low-touch surfaces
handwashing sinks
scrub/sluice areas
the entire floor
Transmission-based precaution / Isolation wards
These are high risk areas, especially for environmentally hardy pathogens (e.g., resistant to disinfectants) and for multidrug-
88
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
resistant pathogens that are highly transmissible or are associated with high morbidity and mortality.
Appendix B2 Table 12. Cleaning Procedure Summaries for Transmission-Based
Precaution / Isolation Wards
Area
Description
Frequency Person / Staff
Responsible
Products/Technique
Additional Guidance /
Description of Cleaning
Airborne
precautions
Daily and as
needed
Cleaning staff Clean (neutral detergent
and water):
high-touch surfaces
floors
Primary focus is adherence to
required PPE and additional entry/
exit procedures; see
Table 5
(page 36)
In addition, clean low-touch surfaces
on a scheduled basis
(e.g., weekly)
Droplet and/
or contact
precautions
Twice daily and
as needed
Cleaning staff Clean and disinfect:
any surface visibly soiled
with blood or body fluids
high-touch surfaces
floors
Cleaning staff must wear
required PPE
Table 5
(page 36)
Dispose of or reprocess cleaning
supplies and equipment
immediately after cleaning
Last clean of the day: clean and
disinfect the entire floor and low-
touch surfaces
Patient
diagnosed
with C. difficile
on droplet
and contact
precautions
Twice daily and
as needed
Cleaning staff Clean and disinfect (two-
step process required and
sporicidal agent):
any surface visibly soiled
with blood or body fluids
high-touch surfaces in the
patient zone
floors
Two-step process required (do
not use combined detergent-
disinfectant):
1. Rigorous mechanical cleaning
process (e.g., using friction).
2. Disinfectant with sporicidal
properties, for example:
sodium hypochlorite solution
(e.g., 1,000-5,000ppm)
enhanced hydrogen peroxide
at 4.5%
Dedicated
noncritical
patient care
equipment for
patients on
transmission-
based
precautions
Consistent
with cleaning
frequency for
patient zone,
before and after
each use and as
needed
Shared cleaning
possible (clinical
staff and
cleaning staff)
Products based on the risk
level of the patient care
area
Select a compatible disinfectant;
see
Material compatibility
considerations
(page 63)
Reprocess (i.e., clean and disinfect)
dedicated equipment after patient
is discharged or transferred
(terminal clean)
Conduct terminal cleaning of all
noncritical patient care equipment in
Sluice rooms
(page 63)
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
89
Area
Description
Frequency Person / Staff
Responsible
Products/Technique
Additional Guidance /
Description of Cleaning
All transmission-
based
precautions
At discharge/
transfer (terminal
clean)
Cleaning staff;
conducted
in close
collaboration
with clinical
staff, specifically
unit manager
or shift leader,
who should
coordinate
schedule
Clean and disinfect:
high-touch surfaces
low-touch surfaces
floors
1. Remove soiled/used personal
care items (e.g., cups, dishes) for
reprocessing or disposal.
2. Remove facility-provided linens for
reprocessing or disposal.
3. Always remove privacy curtains
and window coverings for
laundering (curtains, blinds).
4. Reprocess all reusable
(noncritical) patient care
equipment in sluice rooms.
5. Clean and disinfect all low- and
high-touch surfaces, including
those that may not be accessible
when the room/area was
occupied (e.g., patient mattress,
bedframe, tops of shelves, vents),
and floors.
6. Clean (scrub) and disinfect
handwashing sinks.
Airborne precautions:
Cleaning staff must wear required
PPE; see
Table 5
(page 36).
Keep the door closed during the
environmental cleaning process
(ventilation requirement).
Appendix B2 Table 12. Cleaning Procedure Summaries for Transmission-Based Precaution /
Isolation Wards (Continued)
90
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Noncritical patient care equipment
These items are high-touch surfaces that are touched by both patients and by healthcare workers and may be used on multiple
patients. They include portable or stationary noncritical patient care equipment such as IV poles, commode chairs, blood pressure
cuffs, wheel chairs and stethoscopes.
Appendix B2 Table 13. Cleaning Procedure Summaries for Noncritical Patient Care Equipment
Area
Description
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance /
Description of Cleaning
Shared
equipment
(including
transport
equipment - e.g.,
wheelchairs)
-shared between
patients
Before and after
every patient, and
as needed
Shared cleaning
possible (clinical
staff and
cleaning staff)
Clean and disinfect:
Select a compatible
disinfectant; see Material
compatibility considerations
(page 63)
Ensure division of cleaning
responsibility between nursing
and cleaning staff
Clean and disinfect heavily soiled
items (e.g., bedpans) in
Sluice
rooms
(page 63)
Disinfect bedpans with a
washer-disinfector or boiling
water instead of a chemical
disinfection process
Dedicated
equipment -
when dedicated
to a particular
patient during
their stay
Consistent
with cleaning
frequency for
patient area, and
as needed
Shared cleaning
possible (clinical
staff and
cleaning staff)
Products based on the risk
level of the patient care area
Ensure division of cleaning
responsibility between nursing
and cleaning staff
Shared and
dedicated
equipment
At patient
discharge/transfer
Shared cleaning
possible (clinical
staff and
cleaning staff)
Clean and disinfect:
Select a compatible
disinfectant; see Material
compatibility considerations
in (page 63)
Conduct terminal cleaning of all
noncritical patient care equipment
in dedicated Sluice rooms (page
63)
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
91
Spills of blood or body fluids
Regardless of the risk-level of an area, spills or contamination from blood or body fluid (e.g., vomitus) must be cleaned and
disinfected immediately using a two-step process.
Appendix B2 Table 14. Cleaning Procedure Summaries for Spills of Blood or Body Fluids
Area
Description
Frequency Person / Staff
Responsible
Products/Technique Additional Guidance /
Description
of Cleaning
Any spill in any
patient or non-
patient area
Immediately, as
soon as possible
Cleaning staff
1. Wear appropriate PPE; see
Table 5
(page 36).
2. Confine the spill and wipe it up
immediately with absorbent (paper)
towels, cloths, or absorbent granules
(if available) that are spread over
the spill to solidify the blood or body
fluid (all should then be disposed as
infectious waste).
3. Clean (neutral detergent and water).
4. Disinfect using a facility-approved
intermediate-level disinfectant.
5. Immediately reprocess all reusable
supplies and equipment (e.g.,
cleaning cloths, mops) after the spill
is cleaned up.
Mark off spill area to
prevent contact
92
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Appendix C – Example of high-touch surfaces in a
specialized patient area
High touch surfaces include, but are not limited to:
bed rails bed frames moveable lamps tray table bedside table handles IV poles blood-pressure cuff
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
93
Appendix D – Linen and laundry management
Best practices for linen (and laundry) handling
Always wear reusable rubber gloves before handling soiled linen (e.g., bed sheets, towels, curtains).
Never carry soiled linen against the body. Always place it in the designated container.
Carefully roll up soiled linen to prevent contamination of the air, surfaces, and cleaning staff. Do not shake linen.
If there is any solid excrement on the linen, such as feces or vomit, scrape it off carefully with a flat, firm object and put it in the
commode or designated toilet/latrine before putting linen in the designated container.
Place soiled linen into a clearly labeled, leak-proof container (e.g., bag, bucket) in the patient care area. Do not transport soiled
linen by hand outside the specific patient care area from where it was removed.
Reprocess (i.e., clean and disinfect) the designated container for soiled linen after each use.
If reusable linen bags are used inside the designated container, do not overfill them, tie them securely, and launder after
each use.
Ð Soiled linen bags can be laundered with the soiled linen they contained.
The effectiveness of the laundering process depends on many factors, including:
time and temperature
mechanical action
water quality (pH, hardness)
volume of the load
extent of soiling
model/availability of commercial washers and dryers
Always use and maintain laundry equipment according to manufacturer’s instructions.
Always launder soiled linens from patient care areas in a designated area, which should:
be a dedicated space for performing laundering of soiled linen
not contain any food, beverage or personal items
have floors and walls made of durable materials that can withstand the exposures of the area (e.g., large quantities of water
and steam)
have a separation between the soiled linen and clean linen storage areas, and ideally should be at negative pressure relative to
other areas
have handwashing facilities
have SOPs and other job aids to assist laundry staff with procedures
94
|
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
Best practices for personal protective equipment (PPE) for laundry staff:
Practice hand hygiene before application and after removal of PPE.
Wear tear-resistant reusable rubber gloves when handling and laundering soiled linens.
If there is risk of splashing, for example, if laundry is washed by hand, laundry staff should always wear gowns or aprons and
face protection (e.g., face shield, goggles) when laundering soiled linens.
Best practices for laundering soiled linen:
Follow instructions from the washer/dryer manufacturer.
Use hot water (70–80°C X 10 min) [158–176°F]) and an approved laundry detergent.
Ð Disinfectant are generally not needed when soiling is at low levels.
Ð Use disinfectant on a case by case basis, depending on the origin of the soiled linen (e.g., linens from an area on contact
precautions).
Dry linens completely in a commercial dryer.
Manual reprocessing steps
If laundry services with hot water are not available, reprocess soiled linens manually according to the following:
1. Immerse in detergent solution and use mechanical action (e.g., scrubbing) to remove soil.
2. Disinfect by one of these methods:
Ð Immersing the linen in boiling water or
Ð Immersing the linen in disinfectant solution for the required contact time and rinsing with
clean water to remove residue
3. Allowing to fully dry, ideally in the sun.
Best practices for management of clean linen:
Sort, package, transport, and store clean linens in a manner that prevents risk of contamination by dust, debris, soiled linens or
other soiled items.
Each floor/ward should have a designated room for sorting and storing clean linens.
Transport clean linens to patient care areas on designated carts or within designated containers that are regularly (e.g., at least
once daily) cleaned with a neutral detergent and warm water solution.
Best Practices for Environmental Cleaning in Healthcare Facilities in Resource-Limited Settings
|
95
Appendix E – Chlorine disinfectant solution preparation
Example 1 — Using Liquid Bleach
Chlorine in liquid bleach comes in different concentrations. Any concentration can be used to make a dilute chlorine solution
by applying the following formula:
[% chlorine in liquid bleach ∕ % chlorine desired] − 1 = Total parts of water for each part bleach
Example: To make a 0.5% chlorine solution from 3.5%
bleach:
[3.5% ∕ 0.5%] − 1 = 7 − 1 = 6 parts water for each part bleach
Therefore, you must add 1 part 3.5% bleach to 6 parts water to make a 0.5% chlorine solution.
“Parts” can be used for any unit of measure (e.g. ounce, litre or gallon) or any container used for measuring, such as a pitcher.
In countries where French products are available, the amount of active chlorine is usually expressed in degrees chlorum. One degree chlorum is equivalent to 0.3%
active chlorine.
Example 2 — Using Bleach Powder
If using bleach powder
, calculate the amount of bleach to be mixed with each litre of water by using the following formula:
[% chlorine desired ∕ % chlorine in bleach powder] × 1 000 = Grams of bleach powder for each litre of water
Example: To make a 0.5% chlorine solution from calcium hypochlorite (bleach) powder containing 35% active chlorine
[0.5% ∕ 35%] × 1 000 = 0.0143 × 1 000 = 14.3
Therefore, you must dissolve 14.3 grams of calcium hypochlorite (bleach) powder in each litre of water used to make a
0.5% chlorine solution.
When bleach powder is used; the resulting chlorine solution is likely to look cloudy (milky)
Example 3 — Formula for Making a Dilute Solution from a Concentrated Solution
Total Parts (TP) (H2O) = [% Concentrate ∕ % Dilute] − 1
Example: To make a 0.1% chlorine solution from 5% concentrated solution:
Calculate TP (H2O) = [5.0% ∕ 0.1%] − 1 = 50 − 1 = 49
Take 1 part concentrated solution and add to 49 parts boiled (filtered if necessary) water.
Source: AVSC International (1999). Infection Prevention Curriculum. Teacher’s Manual. New York, p.267.
Interim Infection Prevention and Control Guidance for Care of Patients with Suspected or Confirmed Filovirus Haemorrhagic Fever in Health-Care Settings, with
Focus on Ebola [PDF – 24 pages]
, p. 24. https://www.who.int/csr/resources/publications/who-ipc-guidance-ebolafinal-09082014.pdf
CS314156-A
Division of Healthcare Quality Promotion