XM50 JSGPM
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The XM50 JSGPM (Joint Service General Purpose Mask) is a developmental protective gas mask to be phased into service with the US Army and Marine Corps from September 2006, replacing the current-issue M40 and previous-issue M17-series masks. Like many developmental programs, there are differences between early JSGPM and the product that may officially be adopted.
The XM50 is said to incorporate many innovative features following a long development period, and is being manufactured by Avon Rubber in the UK, makers of the British S10 and FM12 masks.
An abstract of the July 2005 report on the XM50, which is in the public domain reads:
Abstract : The Joint Service General Purpose Mask (JSGPM) is the next generation chemical protective mask intended to replace the MCU-2 and M-40 series masks. Developmental testing and user assessment of the XM5O, a variant of the JSGPM, indicated that the XM5O lacked sufficient fogging mitigation[1] and sweat reduction capabilities. Lens fogging and sweat accumulation in the mask degrade user confidence, impose a physiological burden upon the user, and can seriously degrade operational effectiveness. These performance shortcomings resulted in joint service concern and design changes to the mask were made. In 2003, a field evaluation indicated that the sweat reduction issues had been resolved, but the evaluation was limited and did not challenge the XM5O's ability to mitigate fogging.
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