The M50 series protective mask, officially known as the Joint Service General Purpose Mask, is a lightweight, protective mask system consisting of the mask, a mask carrier, and additional accessories.
A M50 Protective mask with attached filters
United States Marine Corps member is wearing a M50 mask
M40 field protective mask
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The M40 field protective mask was one of various protective masks used by the United States Armed Forces and its allies to protect from field concentrations of chemical and biological agents, along wi
M50 Joint Service General Purpose Mask
…against battlefield concentrations of CB agents, toxins, toxic industrial materials, and radioactive particulate matter. The M50/51 masks replace the M40 field protective mask and M42, the MCU-2/P series masks, and the M45 of the Land Warrior Program. The M50 series mask entered service in December 2006. In July 2014, Avon…
A soldier from the 70th Brigade Support Battalion, 210th Fires Brigade, 2nd Infantry Division wears the M40 during an NBC exercise in South Korea.
US Navy Seabees jog during an exercise with M40s worn.