AprilAire 500M Whole-House Humidifier, White

Updated August 26, 2026

est.MSRP: $230 Notes: Please see all photos Condition: USED CUSTOMER RETURN Functional?: Unable to Test Brand: Aprilaire Model: Humidifiers Evaporative ASIN: B00R3GEJ6K BUY WITH CONFIDENCE This humidifier was designed and manufactured in the USA by AprilAire the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions FULL COVERAGE up to 3,600 square feet in tightly built homes with a capacity of 12 gallons per day MANUAL HUMIDIFIER with a single sensor built into the standard control monitors indoor relative humidity for use in manually setting the percent humidity in your home FEEL MORE COMFORTABLE while also preserving items in your home susceptible to damage from changing humidity or dry conditions HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, you'll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions.

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