PURPOSE: To arrange forcible hand washing with the completion of all the hand washing processes as a prerequisite to open an automatic door, an electric lock, etc., by providing each hand washing process with a sensor section, a supply section for supplying water and hot air only after the presence of a human hand is detected, and a processing section including a timer for calculating the sum of the hand washing time.

CONSTITUTION: In a washing liquid application section A, access of a hand to a sensor section 1a such as a photoelectric sensor by means of infrared rays and attached to the vicinity of a washing liquid outlet is detected with the sensor section 1a. At the same time, a supply section 2a is driven with a signal from a processing section 3a such as a timer to dispense washing liquid from a washing liquid tank and the liquid is applied to the hand. In the meantime, the cumulative time of washing liquid discharge is calculated at the processing section 3a such as a timer, etc. When the cumulative time reaches a predetermined value, the discharge is stopped, a signal is issued from the processing section 3a so that the next process of rub washing may be followed, and the process moves on to the next.