Variable output control & auto shut-off when tank is empty</br>Filter-free with ultra quiet operation</br>Runs up to 36 hours per filling</br>1.25 gallon tank capacity</br>2 year limited Warranty</br></br>Product Description</br></br>Honeywell cool mist easy-to-care removable top fill ultrasonic humidifier features removable top fill water tank that provides 2 easy ways to fill: 1. At the humidifier or 2. Carry to the sink to fill. Filter-free, cool visible mist & ultra quiet operation.</br><br/>http://www.amazon.com/gp/product/B01KIUY3PO