Air Treatment System Compatible HVAC System Size 1.5 to 5 tons Maximum Air Flow Capacity 2000 cfm Voltage 120 V AC Maximum Coverage Area 3 000 sq ft Filters Out Bacteria Dander Dust Fungi Mold Odors Pollen Smoke Viruses VOCs Mounting Location Return Duct For Duct Cut-Out Height 20 in For Duct Cut-Out Width 12 in Filters Included Pleated (Primary) Number of UV-C Bulbs 2 Duct Insertion Length 25 in Install Angle Standard Angle