Indoor Air Quality

Whole-House Humidifiers

Is Your Indoor Air Dry? Humidify. 

It’s cold out, and you’ve flipped on the furnace. But now your family’s suffering from dry skin, sinus congestion or headaches, dry throat, nose irritation, bloody noses, irritated vocal cords, persistent coughs, and cracked lips. These symptoms are most likely due to a lack of humidity in the air. The lower levels of moisture in your home can also foster viruses and bacteria, which is why cold and flu season spike during the winter. 

Whole-house humidifiers are essential for Midwest homes because going without heat in Midwest winters is not an option. A whole-house humidifier can help create a comfortable ecosystem within your home during the driest days while allowing you and your family to enjoy the warm air your furnace or heat pump provides. 

Would a Portable Humidifier Be Sufficient? 

Most people are more familiar with portable humidifiers. Portable humidifiers are generally more expensive upfront, require more maintenance, and cannot deliver total humidification throughout your home. Place a portable humidifier in any room, and it will go to work, adding humidity to that individual room. Keep in mind your portable humidifier will need refilling and cleaning often. 

Tell Me More About Whole-House Humidifiers

Home humidifiers are installed directly onto your ductwork near your furnace, either on the supply or return end, and connect directly to your home’s water supply. 

The water in the humidifier evaporates into the air, increasing the moisture levels. When your furnace is running, the air gets cycled directly through the humidifier joining back up with the rest of your home’s airflow. 

Not only with the whole-house humidifier combat symptoms related to allergies and asthma, but it will also preserve wood floors, cabinetry, and other furnishings and prevent them from cracking, peeling, and warping.

Aptly named, whole-house humidifiers add moisture throughout your entire house and not just in single rooms. Whole-house humidifiers are generally cheaper upfront and save you money by only requiring maintenance about once a year. You can easily change the humidifier pad yourself by following these steps:

  • Check to see where the water valve on the water line is in your home. The water valve location will vary from house to house but is generally in the same area.
  • Scope out where the air damper is on your humidifier. Like the water valve, it varies from house to house.
  • Inside the humidifier, there is an evaporator pad. This pad needs to be changed every year. To change the pad, pull the waterline off the top of the pad, remove the trough at the top of the pad, take off the brackets, slide it out, and slide the new one in.
  • You will notice a difference between the new pad and the old pads. The old pad will have hard water build-up, which discolors the pad.
  • There is a painted black line on the pad; the line signifies the top of the pad and slides into the brackets with the painted line up.
  • Snap the trough back onto the top of the pad, reattach the waterline and slide it back into the humidifier just like you slid it out.
  • To check to see if the humidifier is working correctly, turn it to the highest setting to see if there is water running into the bottom.

ServiceOne’s Whole-House Humidifier Solution 

Aprilaire 600M Whole-House Humidifier




  • BUY WITH CONFIDENCE This humidifier was designed and manufactured in the U.S.A. by Aprilaire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 2,000 square feet in tightly built homes with a capacity of 17 gallons per day
  • 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 30% – 60%, which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma 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.

If you are interested in purchasing or learning more about any of our Indoor Air Quality products, please fill out the form below.