Aprilaire 400 Whole House Humidifier

Aprilaire 400 Whole House Humidifier

Need to maximize your humidity control with minimal water usage? The Aprilaire 400 Whole House Humidifier is the solution for you. The Model 400 is a drainless humidifier, featuring evaporative technology to minimize water use.

Gravity pulls water down, while the wicking action of the Water Panel® draws it back to the top, using 100% of the water delivered to the unit.