Improve your home's air quality for the health of your family. This whole-room, two-tank evaporative humidifier with an Energy Smart™ DC motor delivers our whole-room humidity circulation using 90% less energy. Pressing the leaf button saves even more energy— automatically turning off if it runs out of water. The minimalistic design features clear, easy-fill 1-gallon tanks that are simple to use and maintain, with a low-water indicator that shows when it's time to refill. 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.