Defender™ Multi-Purpose Cartridges are available for 5400, 5500, 7600 and 7700 Series respirators. When properly fitted these cartridges protrect against Organic Vapors, Chlorine, Hydrogen Chloride, Sulfur Dioxide, Hydrogen Sulfide (Escape), Hydrogen Fluoride, Chlorine Dioxide, Ammonia, Methyl Amine and Formaldehyde. The addition of a P100 prefilter adds protrection against all particulates.