Quantity: 1 PairFor Use With 3M Half And Full Facepieces 6000, 7000 And FF-400 SeriesNIOSH Approved For Protection Against Certain Organic Vapors, Acid Gases, Ammonia, Methylamine, Formaldehyde And ParticulatesSwept-Back Design Allow An Enhanced Field Of View And ComfortProvides Respiratory Protection From Certain Organic Vapors, Chlorine, Hydrogen Chloride, Sulfur Dioxide, Chlorine Dioxide, Hydrogen Sulfide, Ammonia, Methylamine, Formaldehyde, Hydrogen Fluoride And Non-Oil And Oil ParticulatesRecommended Applications For The Cartridge/Filter Include Petrochemical And Chemical Processing, Utilities, Pharmaceuticals, Mining And Primary Metals