Air Purifier; Compatible HVAC System Size 1.5 to 5 tons; Number of UV-C Bulbs 1; Duct Insertion Length 17 3/4 in; Voltage 120/240V AC; Removes Airborne Bacteria; Mold and Fungi; Viruses; Mounting Location Ductboard; Plenum; Sheet Metal Air Duct; Filters Included Carbon; Air Cleaning Method Photocatalytic Oxidation; Frequency 60 Hz; Germicidal Efficiency 93.6 Percent; Housing Color White; Includes Power Cord; Duo-2000 Air Purifier; UVC Germicidal Lamp; Includes Mounting Hardware Yes