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
AUTOMATIC HUMIDIFIER with dual sensors to monitor and respond to both outdoor temperature and indoor relative humidity to deliver optimum humidity 24/7 throughout the home – simply set it and forget it
CONVENIENT DIGITAL CONTROL shows percent humidity, lights indicate humidifier is running, when to change the Water Panel, when service is needed, and Blower Activation switch sets humidifier to run continually, or only when the furnace runs
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
Reddit comments offer descriptive information about the Aprilaire 500's function and installation, but lack a clear overall opinion.
What do Redditors love about the Aprilaire 500?
Redditors highlight: 🎯 Automatic humidistat samples air hourly & runs. 📏 Direct replacement possible due to same size.
What are the downsides of the Aprilaire 500?
With only 0 negative mentions out of 4, there are few common complaints.
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Products with more mentions (Aprilaire 500 has 4) tend to have more reliable scores.
4 Reddit opinions analyzed • Last updated 4/5/2026