Treated with SilverClean Technology to fight the growth of slimy mold and mildew on the surface of the water tank- a common problem with traditional humidifiers</br>Thanks to ultrasonic technology it's ultra-quiet when it runs making it ideal to have on while you sleep</br>A SmartMist sensor monitors the humidity in the room and automatically adjusts output to maintain desired humidity level</br>No evaporating pads?? filters or wicks to clean or replace means there are no added costs</br>Enjoy your choice of warm or cool mist and variable spray control works in large or small rooms</br></br>Product Descripti