Personal protective equipment (PPE) practices are the selection, use, removal, and disposal behaviors that place a barrier between infectious material and a worker’s skin, eyes, nose, mouth, or respiratory system. The practices that actually stop germ spread are not simply “wearing PPE”: they combine risk-based selection, correct fit, hand hygiene, disciplined donning and doffing, safe disposal, and respiratory protection when airborne exposure is possible. The Centers for Disease Control and Prevention (CDC), World Health Organization (WHO), and Occupational Safety and Health Administration (OSHA) all emphasize that PPE works as one part of a wider infection-control system. This article explains barrier protection, respiratory PPE, glove and gown technique, eye protection, removal procedures, training, and common failures, with evidence showing why correct practice matters.
PPE Practices—Barrier-and-Removal Controls
PPE practices that stop germ spread are defined by the CDC as measures that use specialized clothing or equipment to protect healthcare personnel from infection or prevent personnel from spreading pathogens to patients. The attribute that determines effectiveness is not the presence of equipment alone, but the integrity of the barrier throughout exposure, removal, disposal, and hand cleaning.
These practices include several related categories, or hyponyms: gloves for hand protection, gowns and coveralls for skin and clothing protection, surgical masks for droplet and splash control, respirators for inhalation protection, and goggles or face shields for mucous-membrane protection. Standard Precautions, used by the CDC for every patient regardless of known infection status, require PPE whenever contact with blood, body fluids, non-intact skin, mucous membranes, or contaminated surfaces is reasonably anticipated.
The important bridge between equipment and behavior is the chain of controls. PPE is the last line of defense after engineering controls, administrative controls, environmental cleaning, vaccination, isolation, and hand hygiene. OSHA’s bloodborne pathogens standard therefore requires employers to provide appropriate PPE at no cost to workers, train employees in its use, and ensure that contaminated PPE is removed before leaving the work area.
Risk-Based PPE Selection
Risk-based PPE selection means matching the equipment to the expected route, quantity, and intensity of exposure. A worker drawing blood may need gloves and eye protection if splashing is possible; a worker caring for a patient with uncontrolled secretions may also need a fluid-resistant gown and face protection; a worker entering an area with airborne particles may require a fit-tested respirator.
The CDC distinguishes surgical masks from respirators. A surgical mask helps protect the wearer from large droplets and splashes and helps limit emissions from the wearer, but it is not designed to seal tightly to the face or reliably filter small airborne particles. A filtering facepiece respirator, such as an N95, is designed to filter at least 95 percent of airborne particles when it is properly fitted and used under an appropriate respiratory-protection program.
Hand Hygiene Before and After PPE
Hand hygiene is the practice that connects every PPE step. Hands should be cleaned before putting on PPE, after removing gloves, after touching potentially contaminated surfaces, and immediately after all PPE has been removed. The CDC states that gloves do not replace hand hygiene because microscopic defects, contamination during removal, and contact with contaminated equipment can still transfer pathogens.
Alcohol-based hand sanitizer is generally preferred in healthcare settings when hands are not visibly soiled, while soap and water are necessary when hands are visibly dirty and in certain gastrointestinal infections, including suspected or confirmed norovirus or Clostridioides difficile situations. The CDC also reports that hand hygiene can reduce diarrheal illness in the community by approximately 23 to 40 percent and respiratory illness by approximately 16 to 21 percent, demonstrating why PPE and hand cleaning must operate together.
PPE Practices—Correct Barrier Use
Correct barrier use means putting on PPE in a sequence that prevents premature contamination and wearing it continuously during the task. Equipment should be inspected before use for tears, gaps, wetness, broken seals, or expired components. Damaged or contaminated PPE should be replaced rather than repaired or reused unless the item is specifically designed and approved for reprocessing.
Gloves and Gowns
Gloves protect the hands from contamination but do not make a worker’s hands sterile. They should be selected according to the task, including chemical resistance, puncture risk, and fluid exposure. Gloves must be changed between patients and between dirty and clean tasks on the same patient. They should never be washed for reuse because washing can damage the material and spread organisms.
Gowns protect clothing and exposed skin when contact with infectious material is expected. The gown should cover the torso, fit securely at the neck and waist, and remain closed during the task. If a gown becomes visibly soiled or wet, it should be replaced promptly. A gown that is open at the back or does not cover the forearms cannot provide complete protection against the exposure it was selected to manage.
Masks, Respirators, and Eye Protection
Eye protection is needed when droplets, splashes, sprays, or contaminated hands could reach the eyes. Goggles provide a seal around the eyes, while face shields provide broader splash protection but may leave gaps at the sides. A face shield is therefore often used with, rather than instead of, a mask or respirator.
Respirators are effective only when the face seal is maintained. OSHA requires medical evaluation, fit testing before initial use and at least annually for tight-fitting respirators, and a user seal check each time the respirator is put on. Facial hair or other conditions that interfere with the sealing surface can invalidate the fit. Workers should not wear a respirator below the nose, leave straps loose, or handle the front surface unnecessarily.
PPE Practices—Doffing and Contamination Control
Doffing is the removal of PPE, and it is frequently the highest-risk stage because the outer surfaces may carry infectious material. A safe removal process is deliberate, slow, and adapted to the equipment sequence. The CDC commonly places the most contaminated items, such as gloves and gowns, among the first items removed, followed by eye protection and respiratory protection according to the exposure setting and local protocol.
A Controlled Removal Sequence
Workers should remove PPE in a designated area, avoid touching the face, and keep contaminated surfaces away from clothing and skin. Hands should be cleaned whenever contamination occurs during removal. The exact sequence may vary by task, but the central principles remain consistent:
- Remove the most contaminated outer surfaces without snapping, shaking, or touching the front of the equipment.
- Roll or fold gowns and coveralls inward so contaminated surfaces are contained.
- Handle masks and respirators by their ties, straps, or ear loops rather than the front.
- Place disposable PPE directly into the correct waste container and send reusable PPE for approved reprocessing.
- Perform hand hygiene immediately after the final item is removed.
Training, Observation, and Real-World Validation
Training is effective when it includes demonstration, hands-on practice, observation, and feedback rather than a one-time lecture. A 2020 Cochrane review of interventions intended to improve PPE use found that more breathable PPE, better-fitting equipment, and structured procedures could reduce contamination, although the certainty of evidence varied across studies. The review also identified training and procedural support as important components of safer removal.
The 2014–2016 Ebola response illustrated the consequences of weak doffing controls. Health systems subsequently introduced trained observers, step-by-step checklists, dedicated donning and doffing zones, and monitored waste handling. These controls address the practical reality that infection can occur even when a worker has access to high-grade PPE if the equipment is selected incorrectly or removed carelessly.
Organizations can track performance with measurable indicators such as respirator fit-test completion, observed hand-hygiene compliance, PPE stock-out frequency, doffing errors, skin injuries, and occupational exposures. A simple process chart can show the percentage of workers who complete each step correctly: risk assessment, selection, inspection, donning, task performance, doffing, disposal, and hand hygiene. The weakest step is often the best target for corrective action.
PPE Practices—Common Failures and Better Controls
Common failures include wearing gloves between patients, touching phones or keyboards with contaminated gloves, reusing disposable masks, allowing goggles to fog and become displaced, choosing a respirator without fit testing, and removing PPE in public or clean areas. These behaviors create a false sense of security because the equipment appears present while contamination pathways remain open.
Better controls are specific and observable. Employers should place PPE at the point of care, provide multiple sizes, post illustrated sequences, supply mirrors for seal checks, make hand-hygiene products easy to reach, and use trained observers for high-risk procedures. Supervisors should correct unsafe technique immediately and investigate shortages or poor equipment fit as system problems rather than treating every error as individual carelessness.
The central lesson is that PPE prevents germ spread when the complete practice is reliable: assess the exposure, choose the correct barrier, fit it properly, keep it intact, remove it safely, and clean the hands. PPE cannot compensate for poor ventilation, inadequate isolation, missed vaccination, unsafe waste handling, or insufficient staffing, but it can substantially reduce exposure when integrated with those controls.
PPE practices—barrier-and-removal controls—are therefore best understood as a connected system rather than a checklist of products. Healthcare leaders, employers, and workers should review CDC Standard Precautions, OSHA respiratory-protection requirements, WHO infection-prevention guidance, and local procedures; conduct regular observed drills; and measure compliance over time. Further reading should focus on fit testing, hand hygiene, respiratory protection, and task-specific infection-control protocols.
Sources: Centers for Disease Control and Prevention, Standard Precautions for All Patient Care, https://www.cdc.gov/infection-control/hcp/basics/standard-precautions.html; Centers for Disease Control and Prevention, Hand Hygiene Recommendations, https://www.cdc.gov/clean-hands/hcp/clinical-safety/index.html; Occupational Safety and Health Administration, Personal Protective Equipment, https://www.osha.gov/personal-protective-equipment; Occupational Safety and Health Administration, Respiratory Protection Standard, https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.134; World Health Organization, Infection Prevention and Control During Health Care When Coronavirus Disease Is Suspected or Confirmed, https://www.who.int/publications/i/item/WHO-2019-nCoV-IPC-2020.4; Verbeek, Jos H., et al., Cochrane Review: Personal Protective Equipment for Preventing Highly Infectious Diseases Due to Exposure to Contaminated Body Fluids in Healthcare Staff, https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD011621.pub5/full