3M 8511 ~ Particulate Respirator with cool flow valve 8511 (N95 Filter Masks) 7000002056 8 Thickness_2.0 mil0.05 mm Use with 3M Half and Application_Automotive Industry Use with 3M Half and Full Facepieces 6000 Series and 3M Half and Full Facepieces 7000 Series with bayonet style cartridge holders Brand 3M Line E A Rsoft Color Green Origin Country USA Product Type Test Plugs Size One size Always follow your organization moist exhaled air to reduce heat and humidity inside the mask Minimizes carbon dioxide buildup in the dead air space Valve remains sealed on inhalation to maintain N95 inward protection Usage & Maintenance Pre Use Inspection Check mask for damage