Planes over water

AIR FORCE PHOTOS

HVAC cooling them down

Senior Airman Domenic Trolla, 379th Expeditionary Civil Engineer Squadron heating, ventilation, air-conditioning and refrigeration technician, sprays built-up dirt off the air filters July 2 on a chiller that provides cool air to the Combined Air Operations Center at this air base in Southwest Asia. The chillers are cleaned weekly to ensure they operate properly. Airman Trolla is native of Ironwood, Mich., and is deployed from Luke Air Force Base, Ariz. (U.S. Air Force photo/Staff Sgt. Joshua Garcia)

PHOTO BY: Unknown
VIRIN: 090702-F-9919G-264.JPG
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