What is the Difference Between a Humidifier and a Dehumidifier?

Humidity levels play an important role in the overall comfort and health of an individual. Every climate experiences changes, and although those changes happen on the outside, they can affect what happens on the inside of the home as well.

Technology has provided two appliances that help control the different levels of humidity: a humidifier and a dehumidifier. Understanding the difference between the two will assist in determining if one or both units are a good fit for your home.


Air can become very dry, especially during winter months. A humidifier works to increase the moisture in the air and is often used to relieve discomforts that cause issues such as sinus infections or the flu.

When heating the air inside to stay warm, the environment becomes even drier. A sore throat, dry skin, or bloody noses are a few of the unwanted symptoms that may result from not having enough moisture present.

The moisture expelled from a humidifier also functions to prevent damage that may occur within the structure of a home. Dry air can ruin furniture, floors, and other personal belongings. Too much moisture, however, can produce a new set of concerns and problems, and that is where the dehumidifier plays its part.


Excessive moisture in the air can result in the production of mold, dust mites, bacteria, viruses or mildew, allowing them all to thrive inside the home. A dehumidifier reduces moisture levels by drawing damp air into the unit. It then redistributes the drier air back into the environment. During this process, the water is collected into a container which drains out naturally through a hose.

High humidity and too much moisture in the home is also an attractive site to many pests. Dust mites, fleas, and cockroaches feel right at home in this type of environment and pose several threats to good health.

Maintaining a good balance of humidity is beneficial to the home itself, but more importantly it can lowers risk factors that jeopardize health and general well-being. While one of these appliances may be suitable for one home, others may benefit by using both.

If you have any questions about your indoor air quality, please give H&H a call today! We are here to help!