Patent ID: 7875108

Claim:
An inactivating device for inactivating inactivation targets comprising at least one of virus and bacteria contained in air, comprising: a humidifying unit for humidifying flowing air; a humidifying water supply unit for supplying the humidifying unit with humidifying water containing active oxygen species having an inactivating action on the inactivation targets, the active oxygen species being achieved by electrolyzing tap water; a selector configured to select a specific inactivation target among the inactivation targets; and a concentration adjusting unit for adjusting the concentration of the active oxygen species in the humidifying water to a predetermined concentration with respect to the specific inactivation target, wherein the humidifying water is tap water containing chlorine ions, and the concentration adjusting unit is equipped with a flow rate adjusting valve for adjusting the flow rate of humidifying water in accordance with the concentration of chlorine ions of tap water.