Breathing required: Faster, Stronger, Cheaper

U.S. Air Force Tech. Sgt. Charles Myers, 52nd Operations Support Squadron NCO in charge of aerospace and operational physiology team from Frenchtown, N.M., wears a mask while operating a reduced oxygen breathing device July 28, 2014, at Spangdahlem Air Base, Germany. ROBD simulates an unpressurized cockpit of an aircraft so the operator can feel the effects of hypoxia and understand how to complete emergency procedures under those conditions. (U.S. Air Force photo by Senior Airman Rusty Frank/Released)

PHOTO BY: Senior Airman Rusty FrankReleased
VIRIN: 140728-F-YU668-131.JPG
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