Introducing the EVDC500 our new whole-room, two-tank evaporative humidifier with an Energy Smart DC motor. With more power than a standard Vornado, it 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. The EVDC500 ensures a comfortable breathing environment.