The Jofel AA19600 hand dryer with 1400 watts of power achieves an airspeed of 400 km/h. The model in matte black dries hands with a warm air curtain in about 10 seconds. Optical sensors automatically activate the operation when hands are nearby. Energy is saved through automatic shutdown at ambient temperatures above 25 °C. The Class II insulation provides safety without the need for a grounding connection.