Vornado's signature energy efficient Vortex Technology empowers the 660 to move air up to 100 feet, providing complete circulation of all the air in the room for a comfortable, even room temperature. The design forward style represents the next evolution of the Vornado circulator. Contrasting high gloss and textured finishes create a modern, yet understated look that fits a variety of decor. No more knobs - sleek, unobtrusive push button controls offer low, medium, high and turbo speed settings. The 660 Whole Room Air Circulator is engineered to be simple to use and maintain. 5-year limited warranty.