Life Support
Airman 1st Class Destynie Duppler, a 352nd Operation Support Squadron aircrew flight equipment journeyman, cleans the lens of night vision goggles with a q-tip and alcohol during her preflight inspection April 21, 2009, at RAF Mildenhall, England. Airman Duppler cleans, repairs and inspects all aircrew life support equipment to ensure reliability and functionality. (U.S. Air Force photo by Staff Sgt. Jerry Fleshman)