Air Force Senior Airman Martini Frazier, a heating, ventilation and air conditioning technician with the 379th Expeditionary Civil Engeineer Squadron, examines the baffles of a chiller unit for dirt and grease build up at Al Udeid Air Base, Qatar, Oct. 22, 2013, as part of monthly operational maintenance. ( Air Force photo by Tech. Sgt. Joselito Aribuabo/Released)

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Size: 1935px × 1291px
Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: air, airforce, force, hvac, military, states, united, usa, usaf