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N95 Respirator Mask Types: Primary Information
The N95 is the most popular series of particulate respirator masks that meet United States government standards. The face masks are tested to reduce publicity to airborne contaminates by NIOSH - the National Institiute for Occupational Safety and Health. NIOSH has 9 total approval courses, N95, N99, N100, R95, R99, R100, P95, P99, P100 organized by oil compatibility and filter efficiency.
The letter signifies how the filter tests in environments exposed to grease aerosols:
N95, N99, & N100. These filters should not to be used with oil aerosols. These should be used in environments exposed to particulates which don't include oil. In many cases, the n- respirators may be reused multiple times.
R95, R99, & R100. These filters are oil resistant. The r- respirators can be used in atmospheres containing particulates any strong or liquid hazard together with oil-based hazards. These are one-time use masks.
P95, P99, & P100. These filters are oil proof. These respirators can be used in any setting exposed to hazardous particulates. The p- respirators are subject to time of use limitations.
The filter efficiency number refers to the share of airborne particulates that have been removed in testing: 95%, 99%, and 100%. If a mask is NIOSH approved then it will have a stamp of approval class printed on the respirator.
NIOSH approved masks additionally come in several sizes, and a well fitting mask is vitally important. When test-fitting an N95 mask or other particulate respirator mask, comply with these simple steps:
1. Press the mask (respirator ) firmly towards the face with the outside nosepiece on the bridge of your nose.
2. Stretch and position the top headband on the back of your head above your ears. Stretch the bottom headband over the head and position below your ears.
3. With each fingers, mold the metal nosepiece to the shape of your nose.
4. To test fit, cup each hands over the respirator and exhale vigorously. If air flows round your nostril, tighten the nosepiece: if air flows around the edges of the respirator, reposition the headbands to fit higher and test again until there isn't a air leakage.
Before choosing the right mask, it can be suggested that you speak with experienced industrial safety personnel about an assessment of your particular environment.
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