Oil Resistance

Rating

Description

Not Resistant

N95

Filters at least 95% of airborne particles

N99

Filters at least 99% of airborne particles

N100

Filters at least 99.97% of airborne particles

Somewhat Resistant

R95

Filters at least 95% of airborne particles

R99*

Filters at least 99% of airborne particles

R100*

Filters at least 99.97% of airborne particles

Strongly Resistant

P95

Filters at least 95% of airborne particles

P99*

Filters at least 99% of airborne particles

P100

Filters at least 99.97% of airborne particles

*No NIOSH approvals are held by this type of disposable particulate respirator.