Humidifies up to 900 sq. ft. through the use of vortex circulation</br>Electronic humidistat for automatic humidity control and 2 fan settings (low?? high)</br>Push-button controls with LCD screen for easy confirmation of settings</br>2 gallon tank capacity and up to 3.5 gallon output every 24 hours</br>Backed by a 5-year limited warranty</br>Refer user manual