Not all commercial HVAC applications are large. They also make germicidal UV systems for PTACs, Fan Coils, Mini-splits, and smaller air handlers. Their magnet-mounted Tight-Fit Kit is ideal for PTACs and Fan Coils and their Mini UV is designed specifically for Mini-split AC systems. Furnaces and air handlers up to 7.5 tons can benefit from an APCO, AHU Series 1, or Blue-Tube UV system.