3M 8293 particulate mask P 100 respirator series rating and high efficiency filtration helps make it ideal for use in a variety of applications including welding, pharmaceutical manufacturing, lead abatement and task involving OSHA substance specific regulated particles. The 3M Cool Flow exhalation valve helps make breathing easier and the adjustable head strap provides a comfortable fit to a broad range of face sizes. Not for use with asbestos. NIOSH 42 CFR 84 classification of P100. Each. Workplace applications includes OSHA substance specific particle exposure in concentrations up to 10x the OSHA PEL (Lead, Cadmium, Arsenic, MDA, excluding asbestos). Sold individually.