AprilAire Model 400 Humidifier
AprilAire Model 400 Water Saver Evaporative Humidifier
The AprilAire Model 400 is a whole-house humidifier designed for maximum water efficiency. Its advanced system uses 100% of the water entering the unit by capturing excess water in a reservoir. The water is converted into vapor and distributed throughout your home before additional water is added, helping reduce waste and lower water and energy costs.
Humidity for Health
Maintaining optimal humidity in your home has been shown to reduce respiratory infections and alleviate symptoms related to allergies and asthma by minimizing the growth of bacteria and viruses.
Humidity for Comfort
Balanced humidity helps protect your home and its occupants from dry air issues such as static shock and dry, irritated skin.
Buy with Confidence
Designed and manufactured in the U.S.A. by AprilAire—the inventor of the whole-house evaporative humidifier and the leader in Indoor Air Quality since 1954.
MARQUE: APRILAIRE
MODEL: AprilAire Model 400
Key Features:
- -Onboard Sensor: Automatically activates the HVAC fan to measure relative humidity inside the ductwork and throughout the home. The humidifier runs whenever humidity drops below the set point.
- -Whole-House Humidification: Perfect for homes with ducted heating and cooling systems.
- -Full Coverage: Designed for tightly built homes up to 5,000 sq. ft., with a capacity of 17 gallons per day.