AprilAire 400 Whole-House Water Saver Evaporative Humidifier

Efficient, whole-house humidifier with water-saving design and optimal humidity control.

AprilAire Model 400 Water Saver Evaporative Humidifier
The AprilAire Model 400 offers efficient whole-house humidification while maximizing water usage. Designed to provide health, comfort, and energy savings.

Water-Saving Design: Captures and recycles excess water, heating it into vapor before adding more, reducing water and utility costs.
Humidity for Health: Helps maintain optimal indoor humidity to reduce respiratory infections, allergy symptoms, and asthma by minimizing bacteria and viruses.
Humidity for Comfort: Prevents issues like static shock, dry skin, and chapped lips while protecting home furnishings.
Onboard Sensor: Automatically measures relative humidity in the ductwork and activates the humidifier as needed.
Whole-House Humidification: Ideal for homes with ducted heating and cooling systems.
Full Coverage: Suitable for tightly built homes up to 5,000 square feet, delivering up to 17 gallons of moisture per day.*
Trusted Quality: Made in the USA by AprilAire, a leader in Indoor Air Quality since 1954.