Breathe safely
RAF MILDENHALL, England - Airman 1st Class Yan Chen, 100th Logistics Readiness Squadron, performs a quality check on a M50 gas mask here Nov. 29, 2011. Unlike the MCU-2/P gas mask, the new M50 model offers a wider field of view, improved breathing resistance and two chemical filters. Regular quality checks are performed on gas masks to ensure they are in proper working order and able to protect Airmen. (U.S. Air Force photo/Senior Airman Jerilyn Quintanilla)
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