Air Cleaner - $230 brand new, minimal use Filters air in a 290 sq ft room every 10 minutes Efficient cleaning from 3-stage filter system Lightweight enough to carry right to the source of the dust Filtration captures particles as small as 5 microns Removable end grill for convenient filter maintenance Quiet operation sound level Includes cartridge filter and foam sleeve Patented, self-sealing intake Onboard power cord storage Specs: Air Flow: 235 CFM Fan Size: 12-in Number of Speeds: 2