U.S. Air Force Staff Sgt. Edward Gregory, noncommissioned officer in charge of health and safety for the 379th Expeditionary Civil Engineer Squadron Fire Department, takes an air sample from a self-contained breathing apparatus Feb. 8, 2021, at Al Udeid Air Base, Qatar. Gregory has worked in fire for 14 years and plans to become a recruiter for the U.S. Air Force when he returns from deployment. (U.S. Air National Guard photo by Tech. Sgt. Brigette Waltermire)
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