XPOWER X-3780 HEPA Air Scrubber – 600 CFM, 4-Stage Carbon+HEPA, 5-Speed, ETL/CETLXPOWER X 3780 Professional HEPA Air Scrubber 600 CFM, 4 Stage Filtration The XPOWER X 3780 is a 600 CFM, 4 stage HEPA air scrubber drawing 2. 8A at 115V with a 1 2 HP external rotor induction motor and 5 speed control. The 4 stage filtration sequence NFS16 washable nylon mesh, PF16 pleated media, CF35 activated carbon, HEPA50 2" HEPA captures particles to 0. 3 microns at 99. 97% while the carbon stage adsorbs VOCs and odors. ETL CETL certified, filter