*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. *Mechanical conditioning(with a switch for mist quantity) *Adjustable output of mist,85-260ML/Hr,superfine mist up to 1-3 microns. *Bi-colored light indicator *Easy and quite operation *Hygrometer *Capacity: 5L