Roger Jordan, a Joint Program Executive Office-Chemical, Biological Defense Enterprise Fielding and Surveillance team equipment analyst/technician, is testing a M-50 Joint Service General Purpose Mask on a Joint Service Mask Leak Test machine March 2, 2016, at Horsham Air Guard Station, Pa. Jordan is part of a three-person team assigned to conduct testing on all the M-50 masks issued to 111th Attack Wing, Horsham AGS, personnel. ( Air Force photo by Tech. Sgt. Andria Allmond)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: -50, 111th, attack, biological, defense, enterprise, executive, fielding, general, guard, joint, mask, national, office-chemical, pa., program, purpose, service, surveillance, team, wing