A U.S. Air Force 86th Operations Support Squadron pilot flies a simulated aircraft while hooked up to the 86th Aerospace Medicine Squadron Aerospace Physiology's reduced oxygen breathing device on Ramstein Air Base, Germany, Sept. 13, 2017. Aerospace physiology Airmen use the ROBD to familiarize pilots and other crew members with the effects of hypoxia, the lack of oxygen at high altitudes, and how to mitigate the symptoms and safely complete their mission. (U.S. Air Force photo by Senior Airman Tryphena Mayhugh)
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