*Ultrasonic Transducing technology. *Water filter with silver ion ceramic ball for bacteria-killing. *Plastic injected with nano-silver powder for preventing microorganism. *Automatically power off when water tank is empty and a buzzer will alarm the user to refill the water. *Casually set humidity of range of 40%--70%. *Adjustable output of mist,85-260ML/Hr,superfine mist up to 1-3 microns. *LCD displays data of humidity,mist,temperature and time *One touch control panel *Easy and quiet operation *Work very silently *1-12Hr timer *Capacity: 5L