Cooler Than Cool, LRS Airmen produce liquid oxygen at Andersen
Senior Airman Charles Medley, 36th Logistics Readiness Squadron cryogenics production supervisor, takes a sample of liquid oxygen to ensure purity Nov. 7, 2017, at Andersen Air Force Base, Guam. The liquid oxygen generated is used on many different aircraft as it is 4,000 times more condensed than gaseous oxygen, making it a much lighter and more space efficient alternative for an on-board breathable air system. (U.S. Air Force photo/ Airman 1st Class Gerald R. Willis)