One requirement is that the current M50 gas mask, in use by all services, not be affected by the JGPD-HME decontaminant under consideration.

The Marines are updating their scary-looking M40 gas masks with a newer, ... Marine Corps Fielding New M50 Gas Mask. Published September 15, 2010.

M50 Gas Mask demonstration at Eastern Washington Regional Science and Engineering Fair at the Spokane Washington State University campus, Washington, March 15, 2018.U.S. Air Force photo/Senior ...

Rocco Candela: This is the M50 gas mask right here. This is the newer version. This is much lighter, better. You have your drinking tube. So, you're gonna put this into your canteen.

The Soldiers are exposed to CS gas to build confidence in their M50 series gas mask. (U.S. Army photo by Staff Sgt. Ronald Shaw Jr.)(RELEASED) ...

The mask, which connects to a belt- or backpack-mounted battery, is based on a commercial version of the Avon M50 filtration mask used throughout the US military.