The 2800 N95 Respirator, with Ventex® valve, is the right mask for such applications as chemical processing, printing, paint and varnish manufacturing, and waste processing. Certified to be 95% effective against particulate aerosols free oil, it has an added carbon layer for filtering out nuisance levels of ozone and organic vapor odors (less than OSHA PEL). Dura-Mesh® shell with a Softspun® lining add comfort and durability. Available in Small and Medium/Large sizes. Certified under NIOSH 42CFR84 Standards. Sold 10 per box.