Crafted to provide a high level of protection, our easy-to-install Comfo Respirator Cartridges guard against a wide variety of contaminants. MSA’s filter cartridges protect against dusts, particles, and mists, while our chemical cartridges protect against gases and vapors. Combination cartridges deliver protection from both particulate and gaseous contaminants. The cartridges thread directly to the receptacles on Comfo and other twin-cartridges respirators.