Industrial Air Scrubber Variable Speed Thermally Protected Motor HP 1/4 hp Voltage 115 V AC 3.5 A Amps Height 16 in Length 30 1/2 in Width 14 in Air Flow with HEPA Filter 150 to 550 cfm Air Flow without HEPA Filter 100 to 600 cfm Filtration HEPA Main Filter Size 12 in x 12 in x 11-1/2 in Prefilter Size 13.5 in x 13.5 in x 2 in Prefilter Type Polypad Discharge Dia 8 in Decibels 65 Vacuum Gauge 0 to 3 in wc Construction Polished Aluminum Net Weight 55 lb