Millennium CBRN Gas Mask's flexible, 1-piece polyurethane lens is bonded to Hycar rubber facepiece. CBRN canister containing chemical sorbents and P100 filter attracts, retains, and neutralizes contaminants. Features dual canister mount, drinking tube, and elastic, 6-point head harness. Internal nose cup, with 2 check valves, deflects air from lens to reduce foging. Includes mecahnical speaking diaphragm. Mask is NIOSH certified as "compliant against CBRN." Comes in 3 sizes. Add optional buty1-coated hood for total head protection and ESP II Communications System. MSA, Pittsburg, PA