Best Small Dehumidifier to Control Humidity In Bathroom

You will need the best small dehumidifier for the bathroom because this space generates high humidity, which might spread to other rooms.

If you have been seeing signs of mold toxicity, the most likely areas where mold has sprouted are these two.

If you have a small bathroom, there is no need to go for a large dehumidifier for mould, such as you would use in the basement.

You can buy many small, even portable, battery powered dehumidifiers. Here, we will let you know everything about such units.

Guide guide to the best small dehumidifier for bathroom

best small dehumidifier for bathroom

Choosing the best small dehumidifier can be hard. You don’t know whether you need one, especially if you already have a whole house dehumidifier.

You also don’t know whether to get a really small one, a medium-sized one, or a big one. Another important consideration is whether you should get a no plug dehumidifier or a plug-in one.

Here are the most vital things to consider:

1. Space rating for dehumidifier

To help you understand the space rating of a dehumidifier, you need to know how these devices work.

Well, here’s a simplistic explanation:

It draws damp air inside and passes it over the condenser coils, which contain refrigerant. The water in the air condenses and drips to the collection pan. It blows the dry air back into the room.

Therefore, the faster the air changes the better because it will lower the humidity.

If you are ordering your dehumidifier from, first, measure the size of your bathroom. You can then look for a unit rated for that space.

By measuring the length and the width of your bathroom, you should get the space in square feet. You can then look for a dehumidifier rated for that or slightly smaller space. In the USA, the average size of a regular bathroom (common home) is 210 square feet.

If this is the size of your bathroom, you can order the Pro Breeze Dehumidifier from, with a space rating of 222 square feet.

Please note: Smaller dehumidifiers might require you to empty the bucket more often.

2. A smart dehumidifier is better

By smart dehumidifier, we mean one that can monitor the humidity level in the room. It does this by using its built-in humidistat or hygrometer.

If the humidity level in the room rises above the set threshold, the dehumidifier will kick in automatically without your intervention. It will lower the humidity to the desired level.

Since we are living in the age of the internet of things, you can also get a dehumidifier that you can control via an app or WiFi.

Of course, you would have to download the app for controlling the dehumidifier on your smartphone. That way, you can monitor the temperature in the room, humidity level, and the bucket status of the unit.

3. Plugged-in vs no-plug dehumidifier for bathroom

no plug dehumidifier for bathroom

This is a vital consideration. Most of the dehumidifiers in the market are plug-in by design. However, as you can see in this short post we did on battery powered dehumidifiers, there is also quite a selection for smaller, no-plug units.

Plug-in dehumidifiers come in all sizes; they are powerful workhorses that can lower the humidity level quickly.

No-plug dehumidifiers are good for closets, small bathrooms, and other small spaces. You can get one with rechargeable batteries or with disposable batteries.

If you have a large bathroom and you have high humidity throughout the year, such as you would get in Florida, get a plug-in dehumidifier. It will serve you better.

For a small, a couple-hour use in the bathroom after bathing or showering, you can get a cordless battery unit.

4. Dehumidifier size (bucket size)

This goes hand-in-hand with the space rating of a dehumidifier. By size here, we mean the bucket size.

If you have really high humidity, you need a dehumidifier with a large capacity, for instance, to remove up to 35 pints a day.

Luckily, there are larger dehumidifiers, such as the Frigidaire 70-pint dehumidifier, which can help a lot if you have runaway humidity levels.

Larger dehumidifiers will consume more electricity, but that’s a small price to pay for comfortable humidity levels in your home.

If you keep the doorways in your home open, the dehumidifier in the bathroom can lower the humidity in other rooms as well.

Remember, high moisture levels in your home can lead to mold colonies. Mold spores can cause symptoms of mold exposure in children, pets, and adults.

Is there a perfect size for a dehumidifier for the bathroom? There isn’t. However, a dehumidifying capacity of 20 to 40 pints would be okay for many bathrooms.

5. Tabletop vs. wall-mounted dehumidifier for bathroom

Place a dehumidifier high up rather than on the floor for the best operation. In that case, you can choose a wall-mounted unit and save your counter space.

If you have enough tabletop space in the bathroom, you can get a tabletop unit. You should never place your dehumidifier on the floor.

If you are really limited in your bathroom space, the wall-mounted dehumidifier might be the best for you.

You will require professional help to install such a dehumidifier, since it must be installed in an upright position.

You can also install it in THE WALL, which means you have to cut a hole in the finished wall of the bathroom.

Choose a wall-mounted dehumidifier with app control and a remote controller. You don’t want to have to reach up all the time to enter your settings.

6. With or without a drain hose?

dehumidifier with drainhose for bathroom

If you are going with the wall-mounted dehumidifier, it will come with a drain hose. This removes the headache of having to remove the dehumidifier bucket to empty it.

Also, basement dehumidifiers with drain hose are perfect for high-humidity spaces. The unit can drain water outside, onto the sink, or out the window, hands-free.

A dehumidifier with a drain hose empties water using gravity. However, this might not work all the time, especially if you are using the unit in a basement bathroom.

If such is the case, you need a dehumidifier with a drain hose and pump. The pump is going to drain the water vertically and over a long distance.

For the wall-mounted ground-floor bathroom dehumidifier, the drain hose alone is enough since you can direct it to the sink.

Best small dehumidifier for bathroom to buy

On the different online marketplaces, you will see so many small dehumidifiers for bathrooms. It can be quite confusing to know what to buy.

Here is a table with a few units that you can order on




ProBreeze Mini Dehumidifier

Best mini dehumidifier for bathroom

17-oz capacity tank

225 square feet space rating

Ivation IVADM10 Mini Dehumidifier

Dehumidifier for bathroom without window

17-oz tank capacity

Auto shut-off on full tank

Pohl Schmitt Electric Dehumidifiers

Best portable dehumidifier for bathroom

Rated for 225 square feet

17 ounces capacity

DDVIVAL Dehumidifiers

Best dehumidifier for bathroom without vent

350 square feet space rating

39-oz tank capacity

It has defrost mode

The best dehumidifier for bathroom without vent

Best dehumidifier for bathroom without vent

An exhaust fan can help to lower the humidity in your bathroom a great deal since it dumps the humid air outside.

But some bathrooms do not have a vent. For this, you need to get the best dehumidifier unit to lower the humidity.

There are many such units, but a wall-mounted one would be perfect. If you live in a place with high outside humidity all the time, a hands-free unit can help you a great deal.

You can generate quite a bit of humidity in your shower and bathing space. Even with a whole-house dehumidifier, you still might want to get a small one, portable or wall-mounted.

A dehumidifier can help with mold in the bathroom. That’s how important having this appliance in your home is.

As you look for the best unit, consider the six factors that we discussed earlier.

The best compact dehumidifier for bathroom

Best compact dehumidifier for bathroom

By compact dehumidifier, we mean one that has a bucket, so you have to empty it when it is full. If you are looking for such a unit, you will be spoiled for choice.

They come in different capacities, starting from a few pints to tens of pints. If the dehumidifier capacity is  high, you should consider getting one with a drain hose and/or a pump.

Do not buy this type of unit without knowing your bathroom size. If it is 400 square feet, get a dehumidifier rated for a space size slightly higher than that.

Another consideration is the humidity level outside or inside. If you live in a humid area, you might have to run a dehumidifier almost daily for several months.

You should get a unit with a drain hose so that you don’t have to keep emptying your dehumidifier bucket all the time. A dehumidifier with a drain pipe can also work when you are traveling.

Dehumidifier for bathroom without window

Dehumidifier for bathroom without window

If you have a bathroom that doesn’t have a window, this means there is not much airflow. The humidity generated when you are bathing or showering does not flow easily outside.

The high humidity in the room is going to cause mold growth. If the mold matures, it produces spores that spread to other rooms in your home. If you inhale the spores, you can develop serious symptoms.

The best small humidifier for the bathroom without windows is a portable model. Usually, a 30-pint one is okay for a standard bathroom size.

If you make it too big, it will be blowing too hot air, which can make the small space feel too hot.

However, there is no problem getting a bigger one since it will do the job faster and go off too soon. Just make sure it has a built-in humidistat so that it can monitor the indoor humidity level. It will go on and off when needed without your intervention.

Best portable dehumidifier for bathroom

A portable dehumidifier is perfect for your small bathroom if you do not have high humidity all the time.

Besides, portability means you can move it from the bathroom to the bedroom or to any other room when you need to use it.

A portable dehumidifier should have the following features:

  • It should have casters/wheels for easy movement from place to place
  • It should have a good carry handle for easier transport
  • Remote or app control for easier monitoring
  • It can also have a drain hose attachment

The best mini dehumidifier for bathroom

Best mini dehumidifier for bathroom

If you have a really small, tight bathroom, you will not have the space for a big dehumidifier. Consider getting the best mini-dehumidifier.

There are many, but none beats the Pro Breeze Mini Dehumidifier. You can get the smaller model with a space rating of 225 square feet. There is also another model rated for 250 square feet of space.

Its features include a 9-ounce bucket, quiet operation, which makes it perfect to use for baby’s room, and it is an award winner. In 2022, it won the award for the Best Home & Garden Brand.


Getting a small dehumidifier for a bathroom will depend on your needs and the size of your bathroom. What’s small for you might be too big for someone else.

Know the size of your bathroom (in square feet) before you go to buy a unit. Do not make a dehumidifier too small because it might overwork and eventually fail. You can tell if a dehumidifier is too small for your bathroom if it blows out cold air.

Regarding the price, well, don’t pay too much and don’t sacrifice the features to pay a low price. On this blog, we say if the features justify the price, get the item!