Oreck XL Professional Air Purifier Type 2 AIR8W AIRFLOW: 140 CFM (cubic feet per minute) EFFICIENCY: Traps particles as small as 0.1 microns FILTRATION TYPE: Two-stage Electronic Precipitation CLEANING AREA: Refreshes 8,400 cubic feet of air per hour DIMENSIONS: 16-1/4 L x 10-1/2 W x 5-1/8 H