Senior Airman Michael Sorrentino, 22nd Operations Support Squadron Aircrew Flight Equipment technician, replaces a quick dawn mask on a KC-135 Stratotanker July 23, 2019, at McConnell Air Force Base, Kan. The KC-135 has six quick don masks on board. AFE Airmen are responsible for replacing and inspecting each mask. (U.S. Air Force photo by Senior Airman Alan Ricker)