
Aprilaire is a manufacturer of whole-home indoor air quality products including whole-home humidifiers, dehumidifiers, air purifiers, ventilators, thermostats, and radon mitigation systems for residential HVAC applications. Founded in 1954 and headquartered in Madison, Wisconsin, Aprilaire invented the first residential humidifier and has been producing whole-home indoor air quality equipment for over 70 years. The HydroCore Series includes the Model 620 bypass humidifier at 18 gallons per day and the Model 720 fan-powered humidifier at 21 gallons per day. The E050 Series whole-home dehumidifier is rated at 50 pints per day. Aprilaire products are made in the USA. HVAC contractors and residential indoor air quality specialists specify Aprilaire products for whole-home humidity control, air purification, and ventilation applications.
Product Lines
HydroCore Series Whole-Home Humidifiers
Aprilaire's HydroCore Series covers bypass and fan-powered whole-home humidifiers for integration with forced-air residential HVAC systems. The Aprilaire Model 620 is a bypass humidifier rated at 18 gallons per day; the Aprilaire Model 720 is a fan-powered humidifier rated at 21 gallons per day with its own blower motor for independent operation. Specified for whole-home humidity control in dry climates and heating-season applications.
Whole-Home Dehumidifiers
Aprilaire's whole-home dehumidifier line includes the E050 Series at 50 pints per day, measuring 10 by 10 by 25 inches and weighing 46 pounds, for basements, crawl spaces, and mechanical room installation. The Aprilaire E050W adds Wi-Fi control via the Aprilaire Connect app. Specified for residential applications where HVAC cooling doesn't provide sufficient dehumidification or where year-round dehumidification is required.
Air Purifiers
Aprilaire's whole-home air purifier line uses an Event-Based air cleaning approach, integrating with the residential HVAC thermostat to run air cleaning cycles based on occupancy and household events. The Aprilaire Healthy Air Monitor senses indoor temperature, humidity, and particle levels to inform purifier operation. Specified for whole-home particle reduction in forced-air systems where standalone room air purifiers don't cover the full conditioned space.
Ventilators
Aprilaire's ventilator product line provides controlled fresh air delivery to comply with ASHRAE Standard 62.2 residential ventilation requirements. Aprilaire ventilators integrate with the residential HVAC system to deliver outdoor air on a controlled schedule, diluting indoor contaminants. Specified for new construction and existing home ventilation upgrades where ASHRAE 62.2 compliance is required.
Thermostats
Aprilaire's thermostat line includes whole-home control systems managing heating, cooling, humidification, dehumidification, ventilation, and air purification through a single interface. Designed for compatibility with Aprilaire IAQ products and standard residential HVAC equipment, specified when the system includes multiple Aprilaire IAQ products that benefit from integrated control.
Why Contractors Specify Aprilaire
Aprilaire invented the first residential humidifier in 1954 and has been producing whole-home indoor air quality equipment for over 70 years from Madison, Wisconsin. Aprilaire products are made in the USA. The HydroCore Series humidifier line covers bypass (Model 620, 18 GPD) and fan-powered (Model 720, 21 GPD) configurations for residential forced-air systems. The E050 whole-home dehumidifier at 50 pints per day covers the capacity range for residential whole-home dehumidification. Aprilaire's product line spans humidification, dehumidification, air purification, ventilation, and thermostats within a single manufacturer catalog.
FAQs