The American Dryer ExtremeAir EXT7-C steel cover high-speed automatic hand dryer has a one-piece steel cover with satin chrome finish for corrosion resistance; has no heating element and so uses only 540 watts at its highest speed, providing the ability to connect up to three units on a single circuit; and has an infrared sensor that turns the dryer on when hands are under the outlet and off when they aren"t to conserve energy and reduce the risk of germ transmission by eliminating the need for a manual control. It is powered by an adjustable-speed universal motor for high starting torque that provides 12-second estimated drying times at its highest speed and the ability to reduce the dryer"s sound output from 83 dB to 69 dB, and to reduce the power use to 300 watts. This hand dryer is rated for 100-240 volts and 50/60 hertz for global wiring system compatibility. Two tamper resistant screws hold the cover to the steel mounting base to help reduce vandalism damage (security hex key included), and the air intake vents are shielded for additional protection. This hand dryer has a silver-based antimicrobial compound infused into internal plastic components to help inhibit the growth of biofilm and mold and extend the operating life of the dryer. The motor has an automatically resetting thermal protector to help reduce the need for parts replacement in case of damage or failure. The automatic sensor is compliant with the EU Restriction of Hazardous Substances Directive (RoHS) for environmental and human safety. This hand dryer can help earn Leadership in Energy and Environmental Design (LEED) credits, is GreenSpec listed for better energy efficiency than conventional dryers, and is compliant with standards for use in the United States and Canada by United Laboratories (UL). SpecificationsMotor horsepower5/8 hpMotor speed14,000-28,000 RPM (revolutions per minute)Air velocity10,000-16,000 LFM (linear feet per minute)Air temperature85 degrees F at an ambient temperature of 72 degrees FAutomatic shutoff time35 secondsSound level69-83 dBVoltage rating100-240 voltsAmperage ratingWith 120 V input: 4.5 amps With 240 V input: 2.3 ampsWattage300-540 wattsCycle50/60 hertzOverall dimensions*9-3/8 x 10-1/8 x 5-5/8 inches (H x W x D)*H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Hand dryers have electric motors that blow heated air to dry hands with. They are mounted on a wall, and are hard wired to a dedicated electrical circuit. Hand dryers are typically installed in high traffic or public restrooms to reduce the costs associated with providing high volumes of clean towels and removing used ones. World Dryer manufactures hand dryers, hair dryers, and baby-changing stations. The company, founded in 1948, is headquartered in Berkeley, IL.