3M N95 Respirator 8511, 10 Pack, NIOSH-APPROVED N95, Features 3M COOL FLOW Exhalation Valve, Relief From Dusts & Certain Particles During Sanding, Pollen, Mold Spores, Dust Particles (8511DB1-A-PS) Backyard Controls release of gas by

Controls release of gas by sealing root gap

soft foam backing that molds to unique contours

With its smart

Fire resistive joint system tested up to 4 hours in accordance with ASTM E 1966 (UL 2079)

and waterline

3M N95 Respirator 8511, 10 Pack, NIOSH-APPROVED N95, Features 3M COOL FLOW Exhalation Valve, Relief From Dusts & Certain Particles During Sanding, Pollen, Mold Spores, Dust Particles (8511DB1-A-PS) Backyard Controls release of gas by3M N95 Respirator 8511, 10 Pack, NIOSH APPROVED N95, Features 3M COOL FLOW Exhalation Valve, Relief From Dusts & Certain Particles During Sanding, Pollen, Mold Spores, Dust Particles (8511DB1 A PS) Advanced filter media for easier breathing M nose clip allows for fewer pressure points and greater comfort Use for non harmful dusts from sanding, grinding, sawing and insulating particles ALSO HELPS FILTER pollen, mold spores and dust particles