1Below 35db quiet work, give you a comfortable and quiet moist environment, help you work efficiently. 2Double layers large open water tank, water capacity up to 180ML. 3The machine head and the water tank are separated combined, more convenient for cleaning. 4Intelligent power off protection devices, the water tank will automatically shut down when water shortage, to prevent the machine from burning out due to water shortage. 5Small and compact, space-saving designs, can be used as a car humidifier.