Combining premium features with superior mil-spec construction, MIRA Safety's CM-6M CBRN tactical gas mask / full-face respirator protects your face, internal organs and respiratory system against a full spectrum of toxic industrial chemicals (TIC) and chemical warfare agents (CWA) including chemical, biological and nuclear threats such as radioactive dust, noxious gas, vaporized pollutants and more. Key Features of the CM-6M Tactical Gas Mask: 20-year shelf life Compatible with the 3M Safety 6878 Spectacle Kit (sold separately) Uses widely available NATO-standard, 40-mm filter cartridges Trusted by police worldwide and government entities in the Czech Mfg: Mira Safety