Staff Sgt. Yair Rubinov, 375th Logistics Readiness Squadron fuels distribution noncommissioned officer in charge, and Airman 1st Class Jason Griggs, 375th LRS fuels distribution operator, complete a required safety checklist to receive a delivery of liquid oxygen on April 17, 2019, at Scott Air Force Base, Ill. Liquid oxygen, or LOX, is used to provide clean oxygen to pilots and anyone on an aircraft above 10,000 feet. (U.S. Air Force photo by Senior Airman Daniel Garcia)
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