Without POL, Pilots can’t breathe
Airman 1st Class Randy Willis 9th Logistic Readiness Squadron, cryogenics technician, purges a hose at Beale Air Force Base, California, July 21, 2022. The steam that comes off of the tank is Liquid Oxygen steam is pressurized, cooled gas at minus 297 degrees Fahrenheit. (U.S. Air Force Photo by Staff Sgt. Colville McFee)