A powered air-purifying respirator is a type of respirator used to safeguard workers against contaminated air. PAPRs consist of a headgear-and-fan assembly that takes ambient air contaminated with one
A PAPR, gown, and biosafety cabinet in use in a BSL-3 laboratory. All parts of the PAPR are visible: the waist unit holding the fan, filter, and battery; the hose; and the mask, in this case a flexible, loose-fitting one.
This full-face mask has an inner orinasal mask to reduce dead space, and, since it is being used against asbestos, exhalation valves (white). The hose connects to a PAPR filter-pump.
Racal suits consist of a PAPR combined with a separate protective suit. They are used in healthcare settings, in this case by the U.S. Army Aeromedical Isolation Team at Fort Detrick, Maryland
The term "immediately dangerous to life or health" is defined by the US National Institute for Occupational Safety and Health as exposure to airborne contaminants that is "likely to cause death or imm
Personal protective equipment for IDLH conditions: pressure-demand supplied-air respirator equipped with a full facepiece in combination with an auxiliary pressure-demand self-contained breathing apparatus
Personal protective equipment for IDLH conditions: pressure-demand self-contained breathing apparatus with a full facepiece