PureGuardian H965AR Ultrasonic Cool Mist Humidifier, 70 Hrs. Run Time, 1 Gal. Tank Capacity, 320 Sq. Ft. Coverage, Small Rooms, Filter Free, Silver Clean Treated Tank, Includes Essential Oil Tray

Provides 15-70 hours of run time depending on setting and atmospheric conditions Filter-free Ultrasonic Technology quietly disperses a fine mist providing relief from the dry and static air Easy to use features including variable speed and a night light, ideal for medium sized rooms