HVAC
Senior Airman Dustin Schierman, 341st Civil Engineer Squadron heating ventilation and air conditioning technician, (left) assists Senior Airman Trevor Walter, 341st CES HVAC journeyman, in mounting a unistrut to support conduit for a miniature split air conditioning system at the heating plant on Malmstrom Air Force Base. The two systems were installed in the heating plant to keep vital system support equipment in a temperature-controlled environment. (U.S. Air Force Photo/Airman 1st Class Collin Schmidt)