| 摘要 |
PURPOSE: An ultrasonic humidifier having an opening and closing unit for an air vent is provided to prevent water from flowing into an air vent by automatically closing the air vent when the humidifier is washed. CONSTITUTION: An ultrasonic humidifier having an opening and closing unit for an air vent comprises an inner ventilation structure(14-1), an outer ventilation structure(14-2), and a spring(16). The inner ventilation structure has an inner air vent(3-1) and is fixed to a lower body. The outer ventilation structure has an outer air vent(3-2) and has the same shape as the inner ventilation structure. When an upper body is separated from the lower body, the spring ascends the outer ventilation structure to block the inner air vent. |
