Q-tip test
U.S. Air Force 1st Lt. Ryan Garrison, 23rd Medical Group clinical imaging diagnostic flight chief, uses a Q-tip swab to test a white powdery substance found in a mail room during a training exercise at Moody Air Force Base, Ga., Sept. 14, 2011. Garrison’s job is to run preliminary test on the substance to locate possible contaminants within the substance. (U.S. Air Force photo by Airman 1st Class Joshua Green)

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Tags: On-Duty, People
Photo by: Airman st Class Joshua Green |  VIRIN: 110914-F-DR541-457.JPG