Senior Airman Donte Hatcher, 379th Expeditionary Logistics Readiness Squadron fuels cryogenic operator, takes a sample from a liquid oxygen tank to ensure its safety during an inspection Aug. 5, 2016, at Al Udeid Air Base, Qatar. Taking a sample of the liquid oxygen is one way Hatcher ensures the product is 99.5 percent pure or higher, which allows aircrew to accomplish their missions safely. (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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