3M Collapsible Respirator With CoolFlow Valve Box of 10

N-Series Filters are restricted to use in an atmosphere free of oil* aerosols and can be used for solid or liquid airborne particulate hazards that do not contain oil*. These filters should be used or reused only with consideration of damage, hygiene, or increased breathing resistance. N95 Particulate Filter - At least 95 filter efficient when tested with ~0.3 um NaCl aerosol. *Oil: Mineral, vegetable and synthetic substances and animal and vegetable fats that are generally slippery, combustible, viscous, liquid or liquefiable at room temperatures, soluble in various organic solvents such as ether, but not in water.