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Personal protective equipment (PPE) is specialized clothing or equipment worn to minimize or prevent exposure to infectious agents. PPE creates a barrier between the wearer and infectious materials, reducing the risk of hand contamination, disease transmission, and exposure to body fluids. It is essential in healthcare settings to protect both healthcare workers and patients from infection.

PPE includes gloves, gowns, aprons, masks, respirators, goggles, face shields, shoes, and headcovers. Gloves protect hands; gowns and aprons protect skin and clothing; masks protect the mouth and nose; respirators protect the respiratory tract from airborne pathogens; goggles protect eyes; face shields protect the face, mouth, nose, and eyes; shoes provide a barrier against contamination; and headcovers protect hair and scalp from splashes.

Respirators offer ultimate protection from the inhalation and spread of airborne pathogens, whereas masks cover only the mucous membranes of the mouth and nose. Respirators are specifically designed to protect the respiratory tract from airborne infectious agents, making them essential when caring for patients with transmission based precautions airborne and protective environment protocols.

Three factors determine PPE selection: predicted exposure, such as touch, splashes, or large volumes of blood or body fluids; the pertinence and appropriateness of the PPE for the isolation precautions required; and availability of PPE in sizes appropriate for individual users. Proper fit is essential for PPE to be effective.

PPE should be donned before contact with the patient, specifically before entering the patient's room. All PPE must be carefully removed and disposed of before exiting the patient's room, except respirators, which must not be removed until completely outside the closed door. Handwashing must be performed immediately after doffing PPE.

Respirators must not be removed until completely outside the closed door to the patient's room because they provide protection from airborne pathogens. Removing them inside the room risks exposure to infectious agents that may still be present. This timing ensures maximum protection for the healthcare worker during the entire patient care encounter.

Handwashing must be performed immediately after doffing PPE because the removal process can transfer microorganisms to hands, even when gloves are worn. This step is critical in breaking the chain of infection and preventing cross-contamination. Proper handwashing completes the infection prevention protocol after patient care.