OSAN AIR BASE, Republic of Korea -- Airman 1st Class Sarah Gaylord, 51st Medical Operations Squadron, dons her new M-50 protective mask during a training class Monday. 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)
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