JSGPM M50 (Joint Services General Purpose Mask M50) is a filtering means of personal protection of the respiratory organs, eyes and skin of a person’s face, developed and manufactured in the United States of America. JSGPM M50 was certified by the United States Department of Defense in September 2007. The first new JSGPM M50 were received by the American Marines on the island of Okinawa and the Hawaiian Islands in 2010. Resistance (resistance) of the face part to the effects of toxic substances: sarin, soman, VX – at least 36 hours. Cyclohexane – at least 20 minutes. Hydrogen cyanide – at least 45 minutes. Cyanide chloride – at least 45 minutes. Phosgene – at least 100 minutes. Size – M, new, not used.