Sperian Protection Americas RWS-54016 Multi-Contaminant Cartridges: * Approved for use against gas and organic vapors, ammonia, methylamine, chorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen fluoride, hydrogen sulfide and formaldehyde * For use with Valuair and Premier half masks * Combination multi-contaminate and P100 high performance cartridges * NIOSH approved: TC-84A-1022 * Carded