Features. Three speed energy efficient oscillating motor. Automatic shut-off feature prevents overheating. 15 HP Motor. Up to 4853 CFM. Tubular steel stand with round base needs only limited floor space. Black powder coating for durable use. Balanced aluminum blades for quiet operation. Three-speed pull switch. Easy height adjustment from 63.75 to 75-58 in. Base wheels for increased mobility. ULUL listed.