If you want to control the excess humidity in your bathroom, the best dehumidifier for you depends mainly on the size of the room AND the amount of moisture you need to get rid of.
Sizing and Square Footage for Bathroom Dehumidifiers
Because bathrooms are typically smaller than other rooms, you often need a smaller dehumidifier. However, bathrooms are often the most humid part of the house. Taking a bath or using the shower releases excess moisture in the air and water droplets form when this moist air hits a cold surface such as the bathroom walls, mirrors, or windows.
Since many bathrooms are small and confined, the humid air is trapped inside, causing dampness and high humidity levels. Over time, this can cause mold and mildew, health issues, or even structural damage.
I bring this up because normally when dehumidifiers list their square foot coverage area, they are assuming a typical amount of moisture in the air. If you have a very humid bathroom that regularly doesn’t dry out well, it helps to size up vs. just going based on the actual square footage of your bathroom.
A bathroom dehumidifier can prevent the problems mentioned above, and just make your time in the bathroom more pleasant. Aside from size, consider your climate and the location of your bathroom, as well as how well your bathroom exhaust fan works. I’ll talk more about this below and in future articles.
Meanwhile, with the above facts in mind, take a look at my top picks to see which one might meet your needs.
Best Bathroom Dehumidifiers Summary
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Best Dehumidifier for Bathroom Reviews
1. Best Overall: hOmeLabs 1500 Sq. Ft. Dehumidifier

My top pick is the Energy Star rated hOmeLabs 22-pint dehumidifier. Bathroom mold stands no chance to survive against this top-rated portable dehumidifier. It extracts up to 22 pints of moisture from the air in very wet spaces or any room within 1,500 square feet.
This powerful dehumidifier is built with an auto humidistat and intelligent control panel for your ease of use. You can set a target humidity level from 35% to 85% and a timer at 0.5 hour increments up to 10 hours, then at 1 hour increments up to 24 hours.
You may also choose to run it continuously for 24 hours or until the 0.8 gallon tank is full. The Turbo mode increases fan speed from Normal Air at 129 cubic feet per minute (CFM) to High Air at 135 CFM for maximum moisture removal and odor reduction. Noise levels won’t be a problem in a large, detached bathroom.
Depending on the dampness in your bathroom, you will need to empty the tank at least once or twice a day. Manual draining is easy given its design. But if you don’t have time for that you can attach a ⅝” diameter garden hose to the drain outlet to enable continuous drainage. The unit also comes with a washable filter.
The sleek and stylish look of this dehumidifier blends well in any modern home. Built with wheels and a handle, it is efficient and reliable for a quick dehumidification anywhere in the house. However, it is important to take note of the size of the room where you intend to use it.
Overall, this hOmeLabs dehumidifier is one of the best choices for almost any type of bathroom. At triple the price of the smallest bathroom dehumidifier in our list, you get about ten times the power and efficiency.
Pros
- Energy Star certified
- High performance
- Big tank capacity
- Long lasting quality
Cons
- Energy Star certified
- High performance
- Big tank capacity
- Long lasting quality
2. Best 30-pint Bathroom Dehumidifier: Inofia 30-pint Dehumidifier

If you want something smaller yet higher in capacity, this 30-pint dehumidifier from Inofia is perfect for small rooms up to 1056 square feet. It’s also great for the basement, attic, garage, kitchen, or laundry room. I particularly like how small and portable this unit is, you’d never guess it’s a 30-pint. With its intelligent controls, you can set a target humidity between 30% and 80% in the increment of 5%. It will automatically stop when your desired humidity level is reached and automatically restart when the humidity rises again.
On account of its 4-pint water reservoir, this is one of the smallest 30-pint bathroom dehumidifiers you can get. Like most modern dehumidifiers, this small unit features a full tank alert, auto shut-off, auto restart and auto defrost functions. You can attach the 6.56-ft drain hose provided to allow continuous draining via gravity.
You can choose between two fan speeds to maximize moisture removal. At 112 CFM air power, it operates at a peak noise level of 46 decibels. If you’re a light sleeper and your ensuite bathroom is located near your bed, this may be a little loud for you.
Small, portable, and powerful, it can handle most rooms in your house. It is not the most energy efficient, but at this size and capacity, it is one of the best you can find.
Pros
- Small and portable
- Smart humidity control
- Continuous draining with drain hose included
Cons
- Small tank capacity
- Low energy efficiency
3. Best Small Dehumidifier for Bathroom: Pro Breeze Mini Dehumidifier

Each bathroom is built differently. Not everyone has the space for a standard 30-pint model, or even needs it in the first place. For small bathrooms or other confined spaces in your house, it may be more ideal to get a cheaper, compact dehumidifier you can place on a table or countertop. The best in this category is the Pro Breeze portable dehumidifier.
It is perfect for any space within 150 to 215 square feet. This powerful, compact dehumidifier extracts up to 9 ounces (250 ml) of excess moisture with a water tank capacity of 16 ounces (450 ml). This means you only have to empty it at least every two days.
Pro Breeze uses the whisper quiet Peltier technology and thermoelectric cooling, which makes it a great dehumidifier even for a small bedroom. It is easy to operate with simple controls and just one button for the power switch. It also has the auto shut-off function for when the water tank is nearly full, as well as an LED indicator light that alerts you when this happens. Emptying the tank is also very convenient. Simply remove it from the dehumidifier, pull the plug out and drain the water into the sink.
This small bathroom dehumidifier runs on 23 Watts, which makes it one of the most power efficient dehumidifier units today. Lightweight and portable, you can easily place it on the bathroom counter or a bedroom side table. One downside is there is no continuous draining option. It works best in warmer climates between temperatures 56°F and 89°F, and stops at 41°F. For a small bathroom prone to moisture and high humidity levels, this is one of the best mini dehumidifiers you can find.
Pros
- Small, lightweight, and portable
- Low energy consumption
- Whisper quiet operation
- User-friendly controls
Cons
- Low capacity
- No continuous drain option
- Temperature restrictions
4. Alternative Mini Dehumidifier: Seavon Dehumidifier

If you don’t like the Pro Breeze model, another great mini dehumidifier for your bathroom is this Seavon Dehumidifier. It is slightly bigger in capacity yet smaller and more compact. This small bathroom dehumidifier comes with a 27 oz (800ml) water tank. It can quickly and efficiently remove up to 12 oz (350ml) of excess moisture from the humid air. It is ideal for small rooms up to 240 square feet in size. Similarly, it works best at temperatures between 56°F and 89℉, and stops at 41℉.
Lightweight and portable as they come, you can use this small dehumidifier anywhere you need, from your bathroom to other rooms in the house. With an average noise level of 35 decibels, you can leave it on overnight without causing any disturbance. After running for 24 hours, it will consume about 0.54 kW of electricity.
This unit also features auto shut-off to prevent water overflow, and an LED indicator light to warn you when the tank becomes full. The sleek design comes with just one button for the power switch. It is easy to use and easier to maintain. To drain, simply slide out the water tank from the back of the unit, pull the plug, and empty the water into your sink or drain.
Pros
- Small, lightweight, and portable
- Low energy consumption
- Whisper quiet operation
- User-friendly controls
Cons
- Small capacity and coverage
- Temperature restrictions
5. Best Desiccant Dehumidifier: Ivation 13-pint Desiccant Dehumidifier

This desiccant dehumidifier by Ivation is one of my most favorite for its unique features. Unlike the compressor types, this desiccant removes 13 pints of moisture in a wide range of temperatures and weather conditions. It works quietly and efficiently even at temperatures as low as 33°F and as high as 104°F. The desiccant technology ensures an energy efficient performance anywhere and anytime you need in a space up to 270 square feet.
This small device has an LCD display with touch buttons for easy control. You can adjust the humidity level from 35% to 85% in increments of 5%, or let it run its 24-hour cycle continuously. Once powered, the unit’s smart sensors will maintain the set humidity and conserve energy. The auto stop function prevents damage by automatically shutting off the unit during threat of tilt or water overflow. Auto restart saves your previous settings in the event of a power interruption.
This Ivation dehumidifier also features Sleep mode with low fan speed and dim screen. The timer lets you schedule operation duration and shut off between 1 and 12 hours. If you have wet laundry hanging in the bathroom, you can also change the fan speed and adjust movement of the air vent to help dry your towels or clothes faster. It also comes with a washable air filter and a 3.8-pint tank with transparent level indicator and built-in handle. You may connect the included drain hose for optional continuous drainage.
This compact unit does a great job as a bathroom dehumidifier as well as a portable solution to prevent mold and mildew in the basement, kitchen, living room, or even boats and RVs. If you want a versatile dehumidifier with just the right power and efficiency, you can’t go wrong with this 13-pint desiccant unit.
Pros
- Quiet desiccant operation
- Works in a wide range of temperatures
- Good for drying laundry
- Energy efficient
Cons
- Low capacity for its size
6. Best for Laundry Room: Vacplus 30-pint Dehumidifier

A lot of us hang damp towels and clothes in the bathroom after a shower or bath. This can cause excessive moisture especially without proper ventilation in the room. With the Vacplus 30-pint dehumidifier, you don’t need a heater or tumble dryer to address this problem. It has a special Drying Clothes mode specifically for this job.
You can set a target humidity with the unit’s intuitive controls. It will monitor the amount of moisture in the air and adjust accordingly to maintain your desired humidity. You may also program the 24-hour timer to turn on the dehumidifier at a specified period and turn off automatically when the time is up. This can save you a lot of time and money in the long run.
This bathroom dehumidifier is equipped with a 1.35-liter water tank. The indicator light turns on when the tank is nearly full. If you don’t want to manually empty the water, connect the provided 1-meter hose to the outlet and allow it to drain continuously into your floor drain.
This unit is powerful enough for a medium sized space or a large bathroom/laundry. The downside is it doesn’t use this power as efficiently as we’d hope.
Pros
- Small and portable for a 30-pint model
- Ideal for drying laundry in the bathroom
- Continuous drain option with hose included
Cons
- Low energy efficiency
- Small tank capacity
How to Find the Best Bathroom Dehumidifier
The best bathroom dehumidifier for you depends on your needs and budget. To save your time and money in the long run, consider the following specifications before making a purchase.
Dehumidification Performance
This is the maximum amount of moisture that a bathroom dehumidifier can remove from the air in 24 hours. If your bathroom gets excessively humid, even though small in size, you may need a device with a more powerful dehumidification performance. For a small to medium sized bathroom with average humidity, a portable dehumidifier may be more than enough. If you do not have the time to check the water tank and manually drain it every other day, you may choose a dehumidifier with a larger water reservoir. You may also look for a unit that offers a continuous drainage option.
Coverage
The area of your bathroom plays a huge role in how efficient your dehumidifier will be. Standard 30-pint units can cover up to 1500 square feet. Portable models can cover anywhere from 150 to 450 square feet. Depending on the area occupied by your bathroom, and its position in your house, there is a dehumidifier that’s just right for you.
Reservoir Capacity
If you do not have the time to check the water tank and manually drain it every day, you may choose a dehumidifier with a bigger capacity. For example, a device that extracts 16 ounces a day can fill a 35-ounce tank in about two days. Note that a larger reservoir also takes up a bigger space. However, if you get a unit with a continuous drain option, then you can just leave it in your bathroom to work all day and night.
Drainage
Water is collected in the built-in tank for manual emptying. Usually, this is enough to last a day or two, depending on your bathroom’s humidity level and the unit’s dehumidification performance. Some portable models for bathrooms come with a large capacity of up to 4 pints.
Larger models, however, give you an option to continuously drain the moisture collected so you won’t need to check the water level and drain it by hand. Just attach the appropriate hose onto the outlet, then place the device above a low-level drain or direct the hose into the drain or sink, and let gravity do the work for you.
Portability
To save on costs, look for a dehumidifier you can use in different parts of your house. For easy movement, you want a unit as small and compact as you can get. Modern dehumidifiers are built with wheels and a handle for added portability. If your bathroom is small, a mini model may be most ideal. Some are even small enough to put on a table or counter.
Energy Efficiency and Power Consumption
An average 30-pint compressor type dehumidifier consumes at least 300 Watts, while the portable mini units can go as low as 20 Watts. Advanced technologies help maximize the energy efficiency of your device. If you need a dehumidifier for 24/7 use, then calculate the possible cost of your monthly bills.
Humidistat
Built-in sensors make it extra convenient to keep track of the temperature and humidity in any of your rooms. Most top-rated units have this feature and more. Your dehumidifier will shut off automatically until optimum humidity is reached, thus reducing your energy consumption. If you want to keep your rooms at a specific humidity level at all times, you may want to look for a dehumidifier that gives you accurate real-time readouts.
Noise level
Any machine of high capacity is bound to produce some noise. The large compressors that most standard home dehumidifiers use can be really loud and annoying. Luckily, most portable dehumidifiers use technologies that produce minimal noise as low as 35 decibels. If you want to use your dehumidifier in different parts of your house, look for a model that will not cause any disturbance to your home living, especially when you’re working or sleeping.
Other Features
All models we listed include the auto shut-off feature to prevent spills. You will also find it useful to have indicator lights for when the tank is full or when you need to wash the filter. Also consider the different fan speeds and operation modes that each model offers.
Do Dehumidifiers Work in Bathrooms?
The bathroom can get extremely humid and moist after a shower or bath. Doing your laundry in the same place can also add more moisture to the air. Smaller spaces make it even harder to control the humidity. You can often see condensation on the mirrors, windows, and walls.
A highly humid and damp bathroom is ideal for mold and mildew growth. You can see this on the bathroom walls, ceilings, and corners, and under the sink or toilet. It is undeniably an unpleasant sight and smell, and it can be harmful to your health as well. If left untreated, it can also damage the structure of your house, cause paint to flake, and leave musty odors on your laundry and household materials.
In some cases, an open window and an exhaust fan can solve humidity issues. But this isn’t always enough to maintain optimum humidity levels in your bathroom year round. A dehumidifier is the best for this job. In just a few hours, you can feel the difference in the air. Get rid of the dampness, breathe cleaner air, and protect your belongings from mold infestation.
Bathroom dehumidifiers remove moisture from the air using different methods. The performance and capacity vary greatly from one model to another. The models we featured give you the best value and a hassle-free experience. Depending on your needs and the condition of your bathroom, there is a dehumidifier that is just right for you.
What Size Dehumidifier Do You Need for Your Bathroom?
Before buying a dehumidifier, it is important to take note of the size of your bathroom. You need to make sure you have enough space and that it can dehumidify every square foot of the room. The bathroom is usually the smallest room in the house. It’s highly unlikely that you’ll need a bulky 50- or 70-pint unit. Unless your bathroom gets extremely humid, opt for a portable mini dehumidifier. They are usually not more than a foot tall and half a foot wide, which means you can safely operate them on the countertop if you have limited space.
How To Keep Moisture Out of Your Bathroom
Bathrooms are generally moist and damp areas since it’s where we shower and take a bath. Before you install a dehumidifier, try to determine what’s causing the high humidity. Fix any leaks to remove excess water.
To keep moisture to a minimum, make sure the room is well-ventilated. You need at least one small window in the bathroom to let in some fresh air and daylight. Install an exhaust fan to help remove the moisture and eliminate odors. After taking a shower, you may leave the door open to let the room breathe and get the condensation to dry out. If possible, take your laundry out in a more open space to dry.
FAQ
Is it safe to use a dehumidifier in a bathroom?
Yes. With proper care, it is totally safe to use a dehumidifier in a bathroom.
Where should a dehumidifier be placed in a bathroom?
The dehumidifier must be placed near the power socket in your bathroom or another room, as far away from the bath or shower area where it can get wet. Large models can be placed in the doorway while smaller ones can sit atop a table, counter, or shelf.
How often should you empty the water tank?
It depends on the moisture levels in your bathroom and the tank capacity of your dehumidifier. Most models come with an indicator light to alert when it’s time to drain the water. For mini dehumidifiers, you’ll probably need to empty it at least every other day. On the other hand, you might need to check bigger models with higher extraction capacity every few hours.
Can you leave your bathroom dehumidifier running all day?
With the auto shutoff function, it is safe to run your dehumidifier continuously. It should stop automatically once the tank is full. However, it’s not necessary to leave it on all day. The best time would be after a bath or shower or if you have damp laundry hanging.
Conclusion
Dampness in the bathroom is a common problem for most homeowners. It can be truly unpleasant and harmful to your health, your belongings, and the structural integrity of your house. A dehumidifier is a good investment for a healthier home environment.
You can find the best dehumidifier for your bathroom depending on its size and levels of moisture. Take note of the features you need before you make a purchase. Review and compare each unit so that you know exactly what you’re getting.