D-M's Mobility Warehouse
U.S. Air Force Senior Airman Anwar Ford, 355th Logistics Readiness Squadron, shows an Airman the new M50 gas mask on Davis-Monthan Air Force Base, Ariz., Oct. 21, 2011. The M50 gas mask is a nuclear, biological and chemical protective mask. It filtrates debris, reduces particle intake, divides a barrier to radiation, and prevents biological disease transmission. (U.S. Air Force photo by Airman 1st Class Christine Griffiths/Released)