High-speed hand dryers blow water off of a restroom user’s hands with a high-velocity air stream. Some models use a nozzle that users place their hands under while others are a horizontal unit patron’s place their hands into. The high-velocity air breaks up the layer of water vapor between the air and the skin and causes the thin water film to evaporate quickly.
Besides drying hands faster, high-speed units have other benefits, including using less energy than traditional dryers and qualifying for LEED credits.
posted on 10/29/2009