200106-F-YU906-0031
U.S. Air Force Airman 1st Class Kaden Simonton, 52nd Aerospace Medicine Squadron Bioenvironmental Engineering technician, right, performs a respirator fit test on Chase Sanders, 52nd Aircraft Structural Maintenance corrosion specialist, left, at Spangdahlem Air Base, Germany, January 6, 2020. A respirator fit test requires the individual being tested to perform seven different breathing exercises to determine if any leakage is occurring inside the respirator. During the tests, members of 52nd AMDS Bioenvironmental Engineering monitor for the presence of particles inside the respirator. (U.S. Air Force photo by Senior Airman Kyle Cope)