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Francisco Grijalva, 47th Civil Engineering Squadron lead firefighter, inspects an oxygen canister while Raul Castorena, 47th CES assistant fire chief, checks other safety equipment on August 25, 2021 at Laughlin Air Force Base, Texas. Safety checks on firefighting equipment are essential for saving lives of both the firefighters and the lives they attempt to save. (U.S. Air Force Photo by Senior Airman Nicholas Larsen)