Shop for Heating, Venting & Cooling at The Home Depot. The B-Air Grizzly Red Polyethylene Blower Fan features 4 operating positions and a 3-speed motor to allow you an outstanding level of airflow customization and control. This powerful fan boasts a maximum air circulation of up to 2,700 CFM, and the built-in outlets allow you to chain multiple units together for even more circulation capacity. A 25 ft. power cord allows convenient repositioning, while the stackable design offers easy storage of multiple units. UL recognition signifies that this fan is safe to use.