Staff Sgt. Nathan Knight, 455th Expeditionary Logistics Readiness Squadron cryogenics supervisor, adjusts a liquid oxygen tank hose, Bagram Airfield, Afghanistan, Sept. 14, 2016. The liquid oxygen tanks are supplied through the 379th ELRS at Al Udeid Air Base, Qatar. Once the oxygen is restored back into aircraft, the tanks are reconstructed and send back to Al Udeid for refill and reuse. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)
<br>Unit: 455th Air Expeditionary Wing
Senior Airman Justyn Freeman
Taken on 14 September 2016
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