North Combo Gas and Vapor Cartridges have resistance to a wide variety of gases including: Ammonia, Chlorine, Chlorine Dioxide, Formaldehyde, Hydrogen Chloride, Hydrogen Fluoride, Hydrogen Sulfide (Escape), Methylamine, and Sulfur Dioxide. They provide 99.97% filtering efficiency for particulates.

• Color: Olive/Gray.
• Use With: Air Purifying half masks.
• Model Compatibility: North 5500, 7700, 5400 and 7600 Series.