TPI PORTABLE MINI BLOWER FAN 24" Floor Model Ideal for dirty and dusty environments. These portable blower fans have an enclosed 2-speed, ¼ HP ball bearing direct-drive motor and are permanently lubricated for optimum performance. Industrial fans have corrosion and dent proof high density polyethylene housing and spiral wire guards that enclose 3 aluminum fan blades for user safety. 10'LSJT type 3-conductor power cord. 120V. Operated by rotary switch. Meets OSHA standards. UL approved. 1 Year Limited Warranty. Horsepower rating based upon maximum speed/load.