Model F258 Height 39" / 99 cm Width 23" / 58 cm Depth 19" / 48 cm Use Weight 49 lb / 22.2 kg CFM Rating (Min) 100 CFM Rating (Max) 504 CFM Rating (Free Air) 980 Blower Type Motorized Impeller Power 115V 2.5 amps Filter System Up to 4-Stage: 3 pre-filters + high-efficiency primary filter Primary Filter High Efficiency; filter media meets HEPA standards (99.97% at 0.3 microns) when tested according to IES-RP-CC001.3; capable of 99.5% at 0.3 microns when installed in unit. Pre-Filters 16" x 16" x 1" / 40.6 x 40.6 x 2.5 cm Housing Thermoformed ABS System Indicator Lights Two (2): Pre-Fi lter change and Primary Filter change Handle Yes Wheels Yes UL Listed Yes