Aprilaire Flow-through Humidifiers
The best way to humidify your home
 
With the proper level of humidity in your home, you will feel more comfortable and breathe easier. You can eliminate that dry eye, nose and throat feeling you have when you wake up in the morning. Humidity also reduces or eliminates static electricity. It protects the investment in your home and your furniture because proper humidity helps prevent wood from cracking and peeling. 

The Aprilaire flow-through humidifier can be easily added to any forced air heating system. The advantage with this type of humidifier is that it provides humidity without breeding or spreading mold or mildew. This is in contrast to the humidifiers that use a reservoir where water can stagnate--a perfect environment for mold and mildew growth. The Aprilaire flow-through humidifier is easy to maintain. It has no moving parts and is designed to operate with no mineral or mold buildup. Most models are equipped with a computerized Auto-trac control.
 
 
 
How Auto-trac Works
 
Aprilaire Humidifiers are designed to accurately control the level of humidity in the home. This is accomplished by the use of an outdoor temperature sensor that communicates with a computer equipped control over 345,000 times per day. In conjunction with a precision humidity sensor which samples the air coming back to your furnace, the Aprilaire Automatic Humidifier Control responds immediately to changing outdoor conditions. Remember, it’s just as important to shut the humidifier down when the humidity control reaches its set point as it is to deliver even more comforting humidity to the home when it’s warmer outside. The Models 400, 600, and 700 come with this automatic humidifier control that allows the humidifier to deliver the optimum amount of humidity based on outdoor conditions. This will typically range from 20% on a really cold day to as much as 45% when it’s warmer outside. This is of importance because industry data shows that mold does not grow in humidity levels below 60%. The bottom line is that no Aprilaire humidifier will contribute to the growth of mold, when installed, operated, and maintained as recommended.