Out with the old, in with the new
OSAN AIR BASE, Republic of Korea -- Tech. Sgt. Nathan Lancor, (center), 51st Civil Engineer Squadron, discuss features of the M-50 masks during a training class June 9. The new mask offers the same level of protection against chemical, biological, and radiological threats as the MCU 2, but takes advantage of technological advancements such as a wider view, easier access to the drinking tube and an additional filter. (U.S. Air Force photo/Staff Sgt. Candy Knight)