Say goodbye to harsh, dry air that can cause sore throats, coughing and irritated sinuses. Now, it's easy to add moisture to any room with this compact, super quiet humidifier. Simply add a bottle of tap or spring water (not included) to produce a cool mist that humidifies the air for up to 12 hours. It has a built-in nightlight and a variable mist setting that's great for bedrooms, living rooms, kitchens, basements and more. Plugs into AC outlet. Includes AC adapter and travel case. Plastic and metal. 4 1/4"L x 2 3/4"W x 4 1/2"H.