The P100 particulate filtering facepiece respirator filters at least 99.97% of airborne particles and is strongly resistant to oil. Disclaimer: The links in this section go to websites outside of CDC/NIOSH and should not be considered as an endorsement of their content, or as a statement of NIOSH policy. The donning procedure and/or user ...

P95, P99, P100 Filters at least 95%, 99%, or 99.97% of airborne particles. OILS When products containing oil (like fuel, lubricating or hydraulic oils, solvents, paints, and pesticides) are sprayed or used in processes producing aerosols or droplets, the oil component may become airborne. NIOSH Respirator Trusted-Source:

‡‡The P100 filter must be color-coded magenta. The Part 84 Subpart KK HEPA filter on a PAPR will also be magenta, but the label will be different from the P100 filter, and the two filters cannot be interchanged. NIOSH established the new test criteria to simulate worst-case respirator use and very severe test conditions.

P95, P99, P100: Filters at least 95%, 99%, 99.97% of airborne particles. Strongly resistant to oil. HE (High Efficiency Particulate Air) Filters at least 99.97% of airborne particles. For use on PAPRs only. PAPRs use only HE filters.

NIOSH filter series and filter efficiency level, e.g., N95, N99, N100, R95, P95, P99, P100. Model number or part number: The approval holder’s respirator model number or part number, represented by a series of numbers or alphanumeric markings, e.g., 8577 or 8577A.

A Guide to Air-Purifying Respirators . Air-purifying respirators (APRs) work by removing gases, vapors, aerosols (airborne droplets and solid par-

(APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100. Click here for information on selection of N, R, or P filters. Up to 1.25 mg/m 3:

Respirator Fact Sheet, What You Should Know in Deciding Whether to Buy Escape Hoods, Gas Masks, or Other Respirators for Preparedness at Home and Work

(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters. Any appropriate escape-type, self-contained breathing apparatus Important additional information about respirator selection

(APF = 10) Any air-purifying respirator with an N100, R100, or P100 filter (including N100, R100, and P100 filtering facepieces) except quarter-mask respirators. Click here for information on selection of N, R, or P filters. (APF = 10) Any supplied-air respirator. Up to 1.25 mg/m 3: