Flow-through Humidifier
The Best Way to Humidify your Home
Protect your family and your home from the unhealthy and damaging effects of over-dry air. Dry nose, cracked, itchy skin, and sore throats. Aggravated allergy and asthma symptoms. Painful static  shocks. Chipping paint and plaster. Splitting or cracked wood floors, furniture, trim and molding. Sound familiar? Why go through another season with these problems when there is a solution—an Aprilaire Whole-Home Humidifier.
Let's say the temperature outside is 10 degrees and the relative humidity outside is 70%, you heat your home to 72 degrees and what you will find is that the humidity level in your home will be only 6% - That's less than the Sahara Desert!  By adding a humidifier to your comfort system you will be able to increase the humidity level in your home to 35% - 40% which is a much more comfortable humidity range.
A Whole-Home Humidifier from Aprilaire, installed by your heating and cooling professional, will deliver the perfect amount of moisture to your air making you feel more comfortable at lower thermostat settings. In fact, the EPA states that you can save up to 4% on your heating bill for every degree you lower your thermostat! Increase your family’s level of comfort and protect your valuable furnishings by adding just the right amount of moisture with an Aprilaire Whole-House Humidifier.
A 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. A flow-through humidifier is easy to maintain. It has no moving parts and is designed to operate with no mineral or mold buildup. In applications where a drain is not located below the height of a flow-through humidifier a condensate pump can be added to pump up and away excess water to a drain elsewhere in the home.
How It Works
An Aprilaire Whole-House Humidifier is installed directly to your central new or existing heating and cooling system. Humidity is introduced into your home’s air in the form of water vapor, which prevents minerals from entering the air in your home and potentially into your lungs. Water is supplied to the distribution tray, allowing it to flow evenly across the Aprilaire Water Panel®. The resulting humidified air is then distributed via your heating and cooling system ductwork throughout your home.
Core Benefits
Every Aprilaire product provides these important key benefits for your family and home. 
Health
An Aprilaire Whole-House Humidifier can reduce the chance of upper respiratory problems. “Humidity reduces the incidence of respiratory infections and speeds recovery from the common cold.”—William J. Hitschler, MD, Archives of Otolaryngology
Comfort
When the air in your home becomes too dry, your body is robbed of precious moisture, leaving you and your family with dry, itchy skin, and dry nose and throat symptoms. An Aprilaire Whole-House Humidifier can help alleviate all of these uncomfortable symptoms and more
Protection
Dry air pulls moisture from walls and hardwood floors which leads to damaging, unsightly cracks. Valuable furniture, artwork and electronics are also subject to the adverse effects of dry air. An Aprilaire Whole-House Humidifier can help protect your home and its contents by supplying the correct amount of moisture to your home’s air
Energy Savings
Most homeowners turn up the thermostat because they feel cold. An Aprilaire Whole-House Humidifier allows you to feel warmer at lower thermostat settings, saving up to 4% on your heating bill for every degree you lower your thermostat, according to the EPA
Whole-Home Humidification vs. Portable
Too much humidity can be as much of a problem as too little humidity. Unlike portable units the Aprilaire Whole-Home Humidifier continually monitors relative humidity levels in your home, then works to deliver the right amount of moisture (click here to view an Optimum Relative Humidity Chart) —never too much or too little— to your entire house. Aprilaire Humidifiers don't require the daily cleaning and disinfecting that many portable units require and you never need to worry about the risk of microbial organism growth due to standing water.
There are several models of Aprilaire Whole-House Humidifiers, designed to satisfy your family’s specific needs
Aprilaire Model 600 Whole-House Humidifier - Features a built-in bypass damper, which means fewer parts in to install. Owners Product Manual
Aprilaire Model 500 Whole-House Humidifier - This humidifier is designed for use in smaller homes. Owners Product Manual
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