U.S. Air Force Tech Sgt. Jermaine Watkins, 7th Aerospace Medicine Squadron Dental Support Flight NCO in charge, changes a belt on a powered air purifying respirator during a patient decontamination training scenario at Dyess Air Force Base, Texas, June 20, 2019. The training began in a classroom where the instructor covered the decontamination equipment and procedures before completing the hands-on training. (U.S. Air Force Photo by Staff Sgt. David Owsianka)