Air King box fans are perfect for shops dormitories offices homes and other locations in need of high volume air movement. Air King box fans feature a 1/25 HP 120 Volt permanently lubricated and permanently split capacitor motor along with an 8 ft. 3-conductor type SPT power cord. Constructed of a steel body with impact resistant plastic and a chemical resistant polypropylene blade. The 20 in. Deluxe Box Fan with Thermostat features an adjustable thermostat that senses room temperature and turns the fan on or off automatically.