Vicks Healthmist Ultrasonic Humidifier.Quietly delivers ultrafine visible cool mist to help restore moisture to dry room air. Essential moisture for better breathing & a more comfortable sleep.Variable mist control allows you to regulate the humidity level in the room for maximized comfort Quiet output so you can sleep. 1.2 gallon capacity, runs for up to 24 hours per filling. Directional mist outlet allows you to control the plume. Use with Vicks VapoPads for soothing vapors (sample pad included). Includes Demineralization Cartridge to help trap minerals and other impurities from the water. 1 year warranty