The 783 Full Size Vornado air circulator is one of Vornado's most powerful circulators. This adjustable height stand circulator uses signature energy efficient Vortex Action to move air up to 100 feet to provide complete whole room air circulation! Easily adjust the height from 42" or 27". This air circulator is ideal for use in large rooms. Comes with 5 years limited warranty and easy to use 3 speed control. Rejuvenate the air and comfort of any room in the home or office with the 783B for energy savings in every season.