Air Purifier, Air Cleaning Method Ionization, Maximum Air Flow Capacity 4800 cfm, Compatible HVAC System Size Up to 12 tons, Ion Output 400,000,000 ions/cc, Self-Cleaning Yes, For Duct -Out Diameter 4 in, Overall Depth 4 in, Overall Height 7 in, Overall Width 7 in, Voltage 24 V AC, 240 V AC, Removes , Mold, Viruses, Mounting Location Inside Duct, BAS Compatible Yes, Contact Rating Up to 250V AC at 1.0 A, Enclosure Rating NEMA 4X, For Outdoor Use Yes, Frequency 50 Hz, 60 Hz