U.S. Air Force Tech. Sgt. Daniel Caban, 1st Maintenance Group Air Force Repair Enhancement Program technician, helped create 3D printed masks for 1st Fighter Wing personnel at Joint Base Langley-Eustis, Virginia, May 4, 2020. The masks were 3D printed with a plastic filament and fitted with a filter cut from non-expired gas mask filters that are no longer in use. (U.S. Air Force photo by Senior Airman Tristan Biese)