It’s not hard to remember the smell of corn chips and sweat emanating from the high school gym lockers. Dirty socks and uniforms that hadn’t seen the inside of a washer for months caused such an unforgettable and rank odor. Some years back, though, HVAC systems rivaled the locker room with their own pungent odor issues. Dubbed dirty sock syndrome, the inconsistent and repulsive problem was eventually narrowed down to a bacteria primarily found on system coils. Time has since revealed more sources of system odors, along with some solutions that allow technicians to abate dirty sock syndrome and all of the other odor culprits, too.