U.S. Air Force Senior Master Sgt. Phillip Edwards, 60th Air Mobility Wing Phoenix Spark superintendent, assembles a 3D-printed prototype of a protective shield at the Phoenix Spark lab at Travis Air Force Base, California, March 31, 2020. Phoenix Spark, 60th Maintenance Squadron and 60th Bioenvironmental Engineer Squadron collaborated to come up with easy-to-manufacture PPE for David Grant USAF Medical Center personnel. (U.S. Air Force photo by Tech. Sgt. Traci Keller)
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