Honeywell40200 Envirocare Platinum Air Purifier 140 CADR (Clean Air Delivery Rate) for medium to large rooms (14 ft x 16 ft). Contemporary, appealing design air cleaner for home or office use with Dual filter system (Carbon Pre-filter for odors and HEPA-type for cleaning the air). Three speed unit with carry handle; Powerful, quiet air movement Helps remove odors and common household airborne particles larger than 0.3 microns from the air that passes through the filter.