Take moisture-balanced air wherever you go with Ultrasonic humidifier! Ultrasonic humidifier RD112Features: i. Provides moisture for dry coughs, dry itchy skin, ... healthier avoiding to be suffering from asthma, allergies, impaired immunity, or respiratory ailments.xii. Autmatic power off when water tank is ... ./ctn4pcsQty./20'GP1,736pcs 40'GP43,472pcs 40'HQ4,032pcs cool mist humidifier