This is the commercial mobile misting fan with a 21-gallon pedestal reservoir, enabling it to cool a patio all day long on a single fill-up. Unlike lesser misting fans that produce drenching spray, this patented model atomizes water into an ultra-fine mist, creating a comfort zone that is 10º F to 20º F cooler than the surrounding area (depending on temperature and humidity). The pedestal holds enough water to run the mister continuously for 8-12 hours and it is made from durable, UV-resistant plastic that won't rust or dent. The amount of mist emitted adjusts with the turn of a dial and a protective grill shields curious fingers and hair from the fan blade. Even with a full reservoir, the fan rolls smoothly on three industrial-grade casters, one of which locks. The fan generates only 65 dB (about the same as normal speech), so it won't drown out conversation or music. Covers an 800' sq. area. Red, Blue or Gray. Plugs into AC. 78" H x 21" W x 20 1/2" D. (65 lbs.)