- Minimal water usage
- No drain required
- No standing water
- Delivers optimum levels of humidity control with the Automatic Digital Humidifier Control. You never have to monitor your settings or wait until you feel uncomfortable.
- Provides vital service, temperature and relative humidity indicators in manual mode as well.
- Humidifies tightly constructed homes up to 4,000 square foot in size.
- Has an evaporation capacity of 0.70 gallons per hour.
Protect Your Family From Overly Dry Air
When you use the Aprilaire Model 400 Humidifier, you eliminate the unhealthy and damaging effects of overly dry air on your family and home. Find a dealer near you to decide if the Model 400 is right for you based on your home's size, age and construction. Or get replacement parts for your existing Model 400 here.