Senior Airman Jaime Williams inspects parts of a mouthpiece on a flyer's helmet.
U.S. Air Force Senior Airman Jaime Williams, with the 437th Operations Support Squadron, inspects parts of a mouthpiece on a flyer's helmet at Charleston Air Force Base, S.C., on Dec. 1, 2009. The squadron provides life support equipment to airmen with the 437th and 315th Airlift Wings.