Cryogenics provide the coolest, freshest air
U.S. Air Force Airman Wesley Henderson, a fuels distribution technician with the 35th Logistics Readiness Squadron, connects a hose to a liquid oxygen tank at Misawa Air Base, Japan, June 29, 2016. Liquid oxygen is converted into breathable oxygen for aviators during flight. Since F-16 Fighting Falcons here generate their own breathable oxygen, the liquid oxygen stored on base is for transient aircraft that may need it when passing through Misawa. Henderson is from Topsham, Maine. (U.S. Air Force photo by Senior Airman Deana Heitzman)