Airman Michael Banks, 2nd Operations Support Squadron Aircrew Flight Equipment helmet section, checks the pressure of a floatation device on Barksdale Air Force Base, La., Aug. 4, 2014. After inflating and checking the pressure of the unit, AFE Airmen will check the pressure again an hour later to ensure it has stayed at the same pressure. (U.S. Air Force photo/Senior Airman Benjamin Gonsier)