This TPI two-speed portable fan features a rotary switch and aluminum blades. Spiral wire front and rear guards, powder-coated 20-gauge steel housing. Meets OSHA standards. Commercial belt drive portable fan provides powerful air circulation and ventilation to commercial environments such as gyms, warehouses, and factories. Features two-speed control. Comes Equipped with 8' long SJT type 3 conductor cord. Motor features: 1/2 HP, 120V, 1-phase, ball bearing, ODP type, permanently lubricated. Speed: 7600 cfm (high), 6700 cfm (low). Aluminum blade, spiral wire front and rear guards, powder-coated 20-gauge steel housing for durability. Switch type: rotary switch. Features 5" rubber wheels for easy mobility. Designed to move air within an up to 320 sq. ft. area. Meets or exceeds OSHA, ETL Listed Mark standards. 1-year manufacturer limited warranty. ⚠ WARNING: This product can expose you to chemicals including nickel which is known to the State of California to cause cancer, and chromium, which is known to the State of California to cause birth defects and/or reproductive harm.