Senior Airman Francia Holt, a physiology technician

Senior Airman Francia Holt, a physiology technician (PT) assigned to the 19th Aerospace Medicine Squadron High Altitude Airdrop Mission Support Center, Little Rock Air Force Base, Ark., adjusts an Airman’s oxygen mask during a high altitude mission, Nov. 16, 2016. The HAAMS Airmen are specially trained to provide in-flight physiological support to aircrews, special operations forces, high-altitude parachutists, and other DoD agencies that perform unpressurized airdrop operations at 20,000 feet mean sea level and above. (U.S. Air Force photo/Staff Sgt. Kenny Holston)