A Fan and a Dehumidifier at the Same Time? (Great Idea or Not?)

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Running a Fan and a Dehumidifier Together

Fans and dehumidifiers are standard household devices to improve your home’s atmosphere. Interestingly, dehumidifiers remove excess humidity, while fans provide a cooling effect to your space. However, many may ask if you can then operate a fan and dehumidifier at the same time?

You can use a fan and a dehumidifier at the same time. Running both a fan and dehumidifier in conjunction can improve your living space by increasing air quality, improving air circulation, decreasing humidity, and lowering the room temperature. 

These devices complement each other providing perfect air harmony for your living space. As you continue to read the below, you’ll explore the benefits of using a fan and a dehumidifier simultaneously.

Do Dehumidifiers Work Better With Fans?

Dehumidifiers work better with fans. Dehumidifiers can reduce and maintain moisture levels in the air by removing humidity from the air. As water passes through the air, a dehumidifier can extract moisture and balance humidity levels in the room. 

However, most folks in high humidity areas are constantly looking to improve its function by increasing air circulation. So if you put a fan near your dehumidifier, you will decrease the amount of humid and damp air in your place.

This actually makes it easier to cool when it’s hot outdoors.

Many may wonder if dehumidifiers work better with fans as too much moisture in the air can contribute to increased mold, dampness, mildew, and other harmful factors in a household.

Although a dehumidifier can remove humidity from a room, it can’t cool a room on its own. As such, a dehumidifier needs the assistance of a fan to work together collectively.

Benefits can include:

  • It keeps the room temperature cool. High humidity levels reduce the cooling efficiency of the room. As dehumidifiers remove excess humidity from the room, the fan works in conjunction to help circulate the drier air around the room. Doing this will maintain a cooling component for the folks in the room.
  • Circulates the air to prevent moisture. Larger spaces can take more time to remove excess humidity with a dehumidifier. There are limited options for humid air to go in a confined space. Instead, it’ll disperse throughout any area within the living space. You can have the room dry more evenly and reduce damp pockets by using fans to increase airflow along with the dehumidifier.
  • It achieves an optimal cooling effect in your living space. Interestingly, using a dehumidifier and fans together can lower your room temperature for a nice cooling effect in your living space. As dry air is easier to cool, your fan will distribute cooler air into the space, lowering the room’s temperature.
  • Increased air quality: Operating your dehumidifier with a fan can improve airflow and overall air quality, especially if you have allergies. Running a dehumidifier with a fan can enhance your room’s air quality by decreasing humidity. An increase in airflow with the fan means fewer dust particles will circulate in the air that can trigger someone’s allergies.
  • There is less risk of mold or mildew growth in your living space. With increased airflow and removal of excessive humidity levels, moisture will evaporate faster, with fewer opportunities for mold or mildew to find damp areas to grow or spread in your home.

Will a Dehumidifier and a Fan Cool a Room?

The dehumidifier will reduce the humidity in the room. High levels of humidity can make you sweat more than normal. The reduced humidity will also help the air feel cooler, even if the temperature doesn’t change.

A dehumidifier and a fan will cool a room. They can work in conjunction to not only improve air quality and circulation but they can also work to cool a room down to a lower temperature for a nice cooling effect in your living space. 

As the fan circulates the air in the room, it can also allow the dehumidifier to remove humidity from the air and drain any excess moisture. With the removal of water from the air and increased air circulation, a cooling temperature will disperse in the room.

The fan will circulate the air throughout the room, which will help you feel cooler. You won’t notice that it is hotter outside when you have a fan blowing on you inside. The combination will give you a cooling effect similar to an air conditioning unit, but without spending hundreds of dollars on one.

Does a Fan Make Damp Worse?

A fan makes the damp worse, as it produces a current of air circulating the same hot, damp and humid air in your enclosed space. Humidity can increase your moisture and damp levels in your household. 

Fans on their own can make dampness worse for your living space as they can’t remove humidity or excessive moisture from the air as a dehumidifier.

Instead, fans can create a circulation of airflow. Air circulation can cause sweat from your skin to evaporate, making your body feel cooler. The fan will only push warmer air from the outside into your room.

If you’re using an air conditioner and a fan, this can cause the warm air from outside, with the cool air from the air conditioning to cause condensation increasing dampness. It’s best to use a fan with a dehumidifier to dry the air removing excess humidity or moisture.

Does Fan Speed Affect Dehumidifiers?

Fan speed can affect dehumidifiers, as they use a fan to draw moisture over a series of refrigerated and heated coils within the device. As the vapor passes through the refrigerated coil cools, the steam condenses into water and will pass over the heated coil and back into the room as dry air.  

The higher the fan setting, the quicker moisture is removed from the air. Once you have removed the contents from the perspective, switching the location to low to maintain the humidity levels is good.

Interestingly, if the fan speed is high, you’ll also have a higher noise level in your space. To reduce the noise level, lower your fan speed and power level.


Overall, high humidity levels reduce the cooling efficiency of your living space.

A fan and a dehumidifier can run in unison to help combat this issue. By running both a fan and dehumidifier together, it can help increase your air quality, improve air circulation, decrease humidity, reduce the risk of mold and mildew, and lower the room temperature in your living space.

Remember, when using both devices for either your home or business, always be sure to read your product manual for safety guidelines and precautions to ensure you are operating correctly.


You may also be interested in… Are Dehumidifiers Bad for Pets? and Is Water From Dehumidifiers Good For Anything?