The 783 Vornado air circulator is one of Vornados 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 to 28 or 40. This air circulator is ideal for use in large rooms. Comes with a limited 5 year warranty and easy to use 3 speed control. Use all year for energy savings in every season. Whole Room Vortex Circulation Moves Air 100 ft. Multidirectional Air Flow Easy To Clean Whisper Quiet 3 Speed Control Energy Saver Assembled in USA – Andover, KS Adjustable Height – 28/40 5 Year Warranty Color Black Warranty 5 year Number of Speed Settings 3 Control Style Mechanical Switch Item Weight 11.96 lbs. Grill Diameter 11.75 in. Item Height 40 in. Item Depth 20.00 in. Item Width 17.20 in. High Speed RPM 1550 Low Speed RPM 900 High Speed Volume 583 CFM Low Speed Volume 351 CFM Hertz 60HZ Volts 120V PowerCord Length 6 PowerCord Plug Type 2-Pin Polarized Blade Diameter 11.25 in.