Is The Air in your Home Safe ?

Poor indoor air quality can cause or contribute to the development of chronic respiratory diseases such as asthma & hypersensitivity pneumonitis. In addition, it can cause headaches, dry eyes, nasal congestion, & fatigue. People who already have respiratory diseases are at greater risk.

The Aprilaire Model 400A Whole-House Humidifier features a built-in bypass damper and utilizes new 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.

The Aprilaire Model 400A Whole-House Humidifier:

• Features truly automatic control
  
• Eliminates standing water, making it the perfect choice for homes with septic systems, locations where a floor drain is not available or families interested in water conservation
• Has an evaporation capacity of 0.70 gallons per hour
  
• Humidifies tightly-constructed homes up to a 4,000 square foot in size

Want the perfect humidity level for any season? Take a look at the Model 600A.

The Aprilaire Model 600A Whole-House Humidifier

features truly automatic control, plus a built-in bypass damper, which means fewer parts to install. The bypass damper is conveniently labeled for both summer and winter settings, allowing you to set it for the entire season with no guesswork involved. The Aprilaire Model 600A Whole-House Humidifier is simply the best performing bypass humidifier on the market.

• The Aprilaire Model 600A Whole-House Humidifier:

  • Features the same performance benefits of other Aprilaire Humidifiers
    
  • Delivers up to 50% more moisture in comparison to competitive units
    
  • Has an evaporation capacity of 0.70 gallons per hour
    
  • Humidifies tightly-constructed homes up to 4,000 square feet in