Senior Airman Donte Hatcher, 379th Expeditionary Logistics Readiness Squadron fuels cryogenic operator, levels out the gauge to see the amount of pressure a 50-gallon liquid oxygen tank has during an inspection Aug. 5, 2016, at Al Udeid Air Base, Qatar. The cryogenics team fills tanks full of liquid oxygen and liquid nitrogen to transport onto the flight line to ensure the aircrew has pure oxygen to conduct the mission. (U.S. Air Force photo/Senior Airman Janelle Patiño/Released)
<br>Unit: 379th Air Expeditionary Wing
Senior Airman Janelle Patiño
Taken on 5 August 2016
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