140313-F-CX352-068

U.S. Air Force Airman 1st Class Christina Kamka, 20th Aerospace Medicine Squadron Aerospace and Operational Physiology technician (right), operates the hypobaric chamber as Senior Airman Paville Aldridge, 20th AMDS Aerospace and Operational Physiology technician (left), informs trainees on what to expect at that simulated altitude, Shaw Air Force Base, S.C., March 13, 2014. Trainees are taken to a simulated altitude of 25,000 feet to determine their hypoxia symptoms. (U.S. Air Force photo by Airman 1st Class Jonathan Bass/Released)

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