Senior Master Sgt. Ray Allen, 168th Aircraft Maintenance Squadron production superintendent, tests the fit of a 3D printed Montana Mask April 1, 2020, at the 168th Maintenance Group hangar on Eielson Air Force Base, Alaska. Allen was the team lead for a project to create functional respirator masks for non-medical 168th Wing Airmen. (U.S. Air National Guard photo by Senior Airman Shannon Chace)

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Photo by: Senior Airman Shannon Chace |  VIRIN: 200401-Z-CP945-1022.JPG