Two-tank evaporative humidifier with an Energy Smart DC motor delivers whole-room humidity circulation using 90% less energy. Features clear, easy-fill 1-gallon tanks that are simple to use and maintain, with a low-water indicator. Customizable humidity settings paired with precise auto humidity control allow you to tailor the natural evaporation process, leaving a perfectly humidified space free from the white dust that mist leaves behind. 5-year satisfaction guarantee and 10-year motor warranty.