U.S. Air Force Staff Sgt. Jordan Addison, 316th Operations Support Squadron Aerospace Physiology operations and administration noncommissioned officer in charge, walks into the altitude chamber at Joint Base Andrews, Md., Dec. 17, 2024. The altitude chamber is used to create a low-pressure training environment where students experience the effects of pressure changes. (U.S. Air Force photo by Airman 1st Class Daniel Walderbach)