This half-mask pre-assembled multi-gas/vapor respirator features a Smart cartridge that greatly reduces the chance of cartridge misuse. Streamlined and lightweight, with fewer parts for a wider field of vision. 100% PVC-Free construction. NIOSH approved for organic vapors, ammonia, methylamine, chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen fluoride and formaldehyde. Can be used with N95, R95 or P100 particulate filters against even more contaminant combinations. Moldex 7000 Series Smart Multi-Gas/Vapor Half-Mask Respirator Kit