Holds up to 1 gallon of water and produces 1.5 gallons of output per day</br>Provides 15-70 hours of run time depending on setting and atmospheric conditions</br>Filter-free Ultrasonic Technology quietly disperses a fine mist providing relief from the dry and static air</br>Silver Clean Protection fights the growth of mold and mildew on the surface of the water tank</br>Easy to use features including variable speed and a night light?? ideal for medium sized rooms</br></br>Product Description</br></br>The 70-hour Ultrasonic Cool Mist Humidifier guards against problems caused by dry air in the home.  It features an easy to fill 1 gallon tank?? ideal for use in medium sized rooms.  Unlike other humidifiers that grow slimy mold on the water tank surface?? Silver Clean Protection is embedded in the tank to fight the growth of mold and mildew on the surface of the water tank. Thanks t