JSGPM Gas Mask
Joint Service General Purpose Mask (JSGPM) replaces the M40/42 and MCU-2/P Series Masks, and the M45. Compared to its predecessors, JSGPM has reduced weight and bulk, lower breathing resistance, and improved equipment compatibility as well as improved and increased periods of protection.
Joint Service General Purpose Mask (JSGPM) incorporates a single eyepiece for much greater field view, tested to ensure it will interface with night vision equipment and weapon-sighting systems.
Today in WW II: 29 May 1943 Remaining Japanese forces on Attu, Aleutian Islands, stage surprise suicidal banzai charge at Massacre Bay, one of the largest such attacks experienced in the Pacific.
JSGPM (XM50 / XM51) Gas Mask
The Joint Service General Purpose Mask (JSGPM) is a lightweight protective mask for all U.S. armed forces ground personnel. JSGPM will provide above-the-neck, head, eye/respiratory protection against CB agents, radioactive particles, and Toxic Industrial Materials (TIMs.) JSGPM is a system that consists of the mask, carrier and accessories. It has a development designation of XM50/XM51.
The JSGPM development and acquisition process began in 1998, with joint service testing in 2004, and with first fielding in 2006. The JSGPM mask is intended to be used with the Joint Service Lightweight Integrated Suit Technology [JSLIST) for head to foot protection.
JSGPM and its drinking assembly are made of heavy rubber and plastic. The system provides a 50 percent performance improvement over the M40, M42, M45, and MCU-2AP series protective masks in key areas such as breathing resistance, weight, field of view, comfort, and protection. During testing, the results of comparative questionnaires showed that 94% of the participating Soldiers rated the JSGPM / XM50 mask as better than the M40 series mask.
Joint Service General Purpose Mask (JSGPM) Changes and Improvements
JSGPM filter technology is the most significant change from prior protective masks.
change. Avon Rubber and Plastics, Inc. of Cadillac, MI, and its subcontractor, Guild Associates, developed the innovative filter system. The new filter reduces breathing resistance by about 50% so wearing the mask will be much less tiring. The new material is packed into a smaller canister, integrated into the mask, thereby improving field of view.
Other improved features and benefits include simplified maintenance and repair using color-coded repair parts for easy identification, a filter shelf-life indicator, the ability to safely and quickly change filters while in a contaminated environment, and an improved drinking system that is easier to use with a greater flow of liquids.
All maintenance of the JSGPM gas mask will be performed by the operator or at the unit level. The number of repair parts has been reduced to twelve, from about 36 for older masks.
Joint Service General Purpose Mask (JSGPM) Carrier
Responding to Soldier complaints about the carrying bags of older masks, the JSGPM program developed a new carrier. It provides a leg strap and mounting panel to connect it to the MOLLE Pouch Attachment Ladder System (PALS) along with an improved opening for rapid, snag free access. All filters and other accessories are provided for with pockets in the carrier and a separate carrying case.
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