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Benefits of Aprilaire Humidifiers

Humidifier Family 2010
Aprilaire introduced the first effective whole-home humidifier in 1954 and we have continued to be an IAQ innovator ever since.  The full line of Aprilaire whole-home humidifiers offers a range of solutions for any application. You can provide a quality product to your consumers that will help battle the negative effects of dry air. Assist your customers in fighting cracked floors, dry eyes, itchy skin and virus transmission. Learn more in our Humidification Product Guide For install guides, spec sheets and owner’s manuals, visit the Technical Information page.

Full Line Advantages from the Company That Started it All:

  • Minimal components for easy installations and maintenance

  • Automatic control for optimal humidity control 24/7

  • Steam humidification: high capacity solution for homes up to 6,200 square feet

  • Efficient operation and simple maintenance reduce call backs 


Click on the picture above to check out our updated Aprilaire Humidifier model recommendation by climate zone. This is current as of June 2019 and was revised in response to furnace fan energy rating regulation changes that go into effect on July 3, 2019.

For more information on these recommendations and humidifier/equipment type compatibility, please read our Partner Pro Talk post that features a presentation on humidifier performance with furnaces with ECM blowers.

Aprilaire Humidifier Product Line

Evaporative Power Humidifiers 

Model 700 Series 

Model 700 humidifiers are attached to the warm air up-flow supply plenum on forced air furnaces and heat pumps. The Model 700 is our most efficient evaporative humidifier. It’s easy to install and a great choice for systems with low or variable speed air handlers.

Evaporative Bypass Humidifiers 

Model 600/500 series

Bypass humidifiers offer high efficiency, simple design and minimal maintenance. Bypass humidifiers are available in multiple sizes depending on need and HVAC system. Bypass humidifiers can be installed with an automatic or manual control and require maintenance just once year.  

The Model 400 series

The Model 400 bypass humidifier uses 100 percent of the water fed to the water panel – eliminating the need for access to a drain.

Steam Humidifiers

Model 800 Series 

Model 800 steam humidifiers provide the highest capacity of all Aprilaire humidifiers. Our steam humidifiers are capable of delivering up to 34.6 gallons of water to the air per day, even in arid climates. An available fan pack allows steam humidifiers to be used in homes where duct work is not accessible or not available.