Do you know the key element of respirators?
1. Purpose: Respirators protect from exposure to airborne particles. In healthcare, protects
from exposure to biological aerosols including viruses and bacteria.
2. Fit: Respirators are designed to seal tight to the face of the wearer.Wearers should be
fit tested to make sure they are using the appropriate model and size of respirator to get
the best fit.
3. Filtration: Respirator filters that collect at least 95% of the challenge aerosol are
given a 95 rating. Those filters that collect at least 99% receive a “99” rating. And
those that collect at least 99.97% (essentially 100%) receive a “100” rating.
4. Use limitations: Generally, single use. Should be discarded when it:
(1). becomes damaged or deformed,
(2). no longer forms an effective seal to the face,
(3). becomes wet or visibly dirty,
(4). breathing through it becomes more difficult, or
(5). becomes contaminated with blood, respiratory or nasal secretions, or other bodily
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