A breath of fresh air

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)

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A breath of fresh air

Staff Sgt. Nathan Knight, 455th Expeditionary Logistics Readiness Squadron cryogenics supervisor, unhooks a liquid oxygen tank hose, Bagram Airfield, Afghanistan, Sept. 14, 2016. The 455th ELRS received 400-gallon liquid oxygen tanks from the 379th ELRS at Al Udeid Air Base, Qatar, which ships liquid oxygen and liquid hydrogen daily to other bases throughout the U.S. Air Forces Central Command’s area of responsibility. The oxygen goes through a series of tests before being used in aircraft. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

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A breath of fresh air

Tech. Sgt. Corey Briggs (right), 455th Expeditionary Logistics Readiness Squadron cryogenics, and Staff Sgt. Nathan Knight (left), 455th Expeditionary Logistics Readiness Squadron cryogenics supervisor, handle a sample of liquid oxygen, Bagram Airfield, Afghanistan, Sept. 14, 2016. Once the sample is collected, cryogenics technicians perform an odor test to ensure the liquid oxygen is good for use. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

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A breath of fresh air

Staff Sgt. Nathan Knight, 455th Expeditionary Logistics Readiness Squadron cryogenics supervisor, opens a valve on a 400-gallon liquid oxygen tank, Bagram Airfield, Afghanistan, Sept. 14, 2016. Cryogenics Airmen work with liquid nitrogen and liquid oxygen that is stored into aircraft, providing aircrews with pure oxygen at altitude during missions in support of Operation Freedom’s Sentinel. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

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A breath of fresh air

Tech. Sgt. Corey Briggs (left), 455th Expeditionary Logistics Readiness Squadron cryogenics, and Staff Sgt. Nathan Knight (right), 455th ELRS cryogenics supervisor, pour liquid oxygen into a bin, Bagram Airfield, Afghanistan, Sept. 14, 2016. The 455th ELRS received 400-gallon liquid oxygen tanks from the 379th ELRS at Al Udeid Air Base, Qatar, which ships liquid oxygen and liquid hydrogen daily to other bases throughout the U.S. Air Forces Central Command’s area of responsibility. The oxygen goes through a series of tests before being used in aircraft. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

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A breath of fresh air

Tech. Sgt. Corey Briggs, 455th Expeditionary Logistics Readiness Squadron cryogenics, puts on protective equipment to handle liquid oxygen, Bagram Airfield, Afghanistan, Sept. 14, 2016. Cryogenics Airmen work with liquid nitrogen and liquid oxygen that is stored into aircraft, providing aircrews with pure oxygen. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

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A breath of fresh air

Tech. Sgt. Corey Briggs, 455th Expeditionary Logistics Readiness Squadron cryogenics, guides a 10k forklift, Bagram Airfield, Afghanistan, Sept. 14, 2016. The 455th ELRS received 400-gallon liquid oxygen tanks from the 379th ELRS at Al Udeid Air Base, Qatar, which ships liquid oxygen and liquid hydrogen daily to other bases throughout the U.S. Air Forces Central Command’s area of responsibility. The oxygen goes through a series of tests before being used in aircraft. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)

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A breath of fresh air

Published Sept. 15, 2016
By Senior Airman Justyn M. Freeman
455th Air Expeditionary Wing Public Affairs

BAGRAM AIRFIELD, Afghanistan -- 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)