U.S. Air Force Senior Airman Andrew Chowder, 36th Logistics Readiness Squadron cryogenics production technician, monitors equipment producing liquid oxygen at Andersen Air Force Base on Sept. 3, 2014. Unique to just a few locations in the Air Force, the team utilizes cryogenic technology to provide pure, clean breathing oxygen and clean, dry nitrogen in support of a multitude of units’ aviation, medical and maintenance needs. (U.S. Air Force photo by Staff Sgt. Stephany Richards/ Released)
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