Is the air in your home feeling a little dry? A bit Sahara esque? Never fear, the Vornado EVDC500 Energy Smart Evaporative Humidifier is here. This humidifier takes the edge off in dry rooms up to 1,000 square feet in size and, with its 2 gallon tank, can deliver up to 4 gallons of moisture into your air in a 24 hour period. It features precise and automatic humidity control with its SimpleTank system with low water indicator and auto shutoff. Rest assured that your electric bill will feel as good as you do thanks to the Vornado EVDC500 Energy Smart Evaporative Humidifier's energy efficient design.