Can We Use an Exhaust Fan in the Bedroom? It Helps with the Temperature and Humidity!

Before we know whether the use of an exhaust fan in the bedroom helps, perhaps you do not know what this is.

So, what is an exhaust fan?

Just as its name suggests, this fan sucks humid air from a space such as a bathroom or kitchen and allows fresh and fresh air to enter from elsewhere.

Thus, if you have been asking, do bathroom fans remove heat? Of course, they do. That is why there is a lot of information on the internet regarding this.

When the exhaust fan draws the humid air from the kitchen or bathroom, it pushes the air out through the ducts.

The fresh air from outside will come in through windows, doors, or vents specifically installed for air circulation.

How does the exhaust fan work in the bedroom?

how to use exhaust fan in bedroom

Most people wonder whether you can use an exhaust fan in the bedroom. The answer is yes, you can!

If the air in the bedroom is too humid or is polluted with contaminants, you need to draw it out of the room.

An exhaust fan can help improve your living conditions in the bedroom in many ways.

Here are just a few of the ways:

1. It expels humid air outside

The best way to do that is to install an exhaust fan that draws the humid air and expels it through the duct system.

The humid air has many disadvantages. For instance, it can cause mold and mildew to grow on your clothes.

When mold is left for too long, it develops mold spores, which can aggravate certain respiratory conditions and problems. It causes serious mold toxicity symptoms in people and pets.

Mold can also damage your books, furniture, walls, ceilings, and other items. Thus, always keep the humidity level between 35 and 55%.

If you do not want to keep the dehumidifier running all the time, you can use an exhaust fan.

In any case, a dehumidifier sucks the air in, pulls the moisture out, and then the fans whip the dryer and warmer air back into the room.

However, an exhaust fan pulls the air out of the room, creating a vacuum. This draws air from outside through vents or doorways.

2. An exhaust fan can help with different smells

Humidity is not the only reason why you might need to install an exhaust fan in the bedroom. If you have a baby and you change his diapers in the room, it may smell terrible.

During the cold season, opening the windows is not always an option. In such a case, you might need a heat extractor fan since it will also draw the smell out.

If there is a musty smell in the bedroom, you can use the exhaust fans in the bedroom to remove the smell.

Mostly, musty smells develop from mold and mildew that grow on the walls in dark spaces. If there is too much humidity in the room, it can cause the growth of mildew and mold.

If you have a newly built house, you will want to remove the formaldehyde smell from the indoor space. A fan can help with such smells and allow fresh, crisp air from outside to come in.

The best size for a bedroom exhaust fan

For effective use of an exhaust fan in the bedroom, you need to know the best size that you should get. In addition to knowing the size, you also need to know the best position to install the fan.

Before you buy your exhaust fan for the bedroom, you need to know a few things. One of them is the size of the bedroom in square footage.

If you have a bedroom that measures 150 square feet, you need to find an exhaust fan that is rated for just such a space.

If you get one that is rated for a bigger space, it might remove the air faster than the vents can replenish it.

To make the fan more effective, keep the windows and doors open, of course, weather allowing. This will make the air exchange process faster.

It is also best to use the exhaust fan in the bedroom during the day because, at night, too much cold air might come in from outside.

Image of exhaust fans for bedroom

Use of exhaust fan in bedroom FAQ

Most people have many questions regarding the use of these appliances. For instance, some ask whether an exhaust fan can remove heat, and many others.

Here are some of the frequently asked questions:

Do exhaust fans remove heat?

If you have a ducted exhaust fan, it can remove heat from your bedroom, kitchen, and even the bathroom.

It will also remove humid air and create a vacuum so less humid air from the outdoors can come in.

Overall, exhaust fans remove heat, smoke, grease, and other impurities from your indoor air. However, this does not mean that an exhaust fan can work in the same way as an air purifier.

Where should the exhaust fan be placed in a room?

For an exhaust fan in a bedroom, bathroom, or kitchen to work well, you must keep the vents, doorways, and windows open.

Since the fan removes air from the room, creating a vacuum, you need moving air in the room. Position the fan in such a way that it is opposite the source of the air flowing in.

Does the exhaust fan bring in fresh air?

This fan extracts contaminated air from inside the room and allows fresh air from outside to come inside. So yes, it allows fresh air in the room as long as there are vents, or you keep the windows or doors open.

What is the difference between a ventilation fan and an exhaust fan?

The exhaust fan removes polluted or humid air from inside the house to create a vacuum that better and fresher air from outside rushes in to occupy.

Actually, if you have the fan running and the windows open, you can feel the air flowing through the windows.

A ventilation fan just brings air from outside to your room without removing much of the already existing air.

Is it bad to leave the exhaust fan on?

It is not a good idea to leave the exhaust fan running for too long because the motor can overheat. Lint, dust, and other impurities might also clog the fan, and the lint might catch fire.

Only run the fan when you are at home, and never leave it running when you go to bed.

When should I use an exhaust fan?

Exhaust fans are mostly used to remove the extra humid air from the bathroom, kitchen, and other small spaces.

If you have 70 percent humidity or higher indoors, this fan will help lower it. Also, use this kind of fan to remove humid air from your bedroom.

Also read my past articles on:

Pure Enrichment humidifier keeps shutting off

Levoit humidifier not working after cleaning


The use of an exhaust fan in the bedroom is going to give you a better sleeping experience. Use it with caution, always when you are at home, and never leave it on when you are sleeping. Keep the windows open to improve the quality of your air.

But you cannot rely on exhaust fans alone to create a comfortable indoor space. You also need to buy a dehumidifier and humidifier for humidity control.

You also need to invest in a high-quality air purifier if you live in a place with highly polluted air.