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PAPR, Powered Air Purifying Respirator
PAPR, Powered Air Purifying Respirator (PAPR) should be worn for high-risk aerosol-generating procedures. These respirators also meet CDC guidelines for protection against TB exposure. A PAPR uses a blower to pass contaminated air through a HEPA filter, which removes the contaminant and supplies purified air to a facepiece. A PAPR is not a true positive-pressure device because it can be over-breathed when inhaling. A face shield may also be used in conjunction with a half-mask PAPR respirator for protection against body fluids.

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