ultrasonic humidifier auto humidifier control,water protect,automatic input water ,water filter ultrasonic humidifierItem ... -400M3 Humidity: 70%-40% Hole: 110mm(bouble hole) Device: auto humidifier control,water protect,automatic input water ,water filterSpecification:Appearance is ... atomizing particle size among1-10 um,can floating on the air in a long time ,No mechanical drive ,no noise ,no ...