3M™ Mercury Vapor/Organic Vapor/Acid Gas Cartridge/Filter P100 60927 is NIOSH-approved for protection against mercury vapor, chlorine, sulfur dioxide, organic vapor and hydrogen sulfide. These cartridges are compatible with the 3M half and full facepiece respirators with a bayonet-style filter/cartridge connection or 3M™ Scott™ facepieces with 3M™ Scott™ AV-632 Bayonet Adapter.