There are hundreds of bathroom dehumidifiers claiming to be the best. We researched the most well-reviewed results and then put them to the test. Below are the best bathroom dehumidifier models that came out on top. We looked at coverage area, tank capacity, and the rate at which each unit could dehumidify a bathroom.
- 10 Best Dehumidifiers for the Bathroom in 2020
- Bathroom Dehumidifier Buying Guide
10 Best Dehumidifiers for the Bathroom in 2020
Eva Dry 1100
The unit is one of the more affordable bathroom dehumidifiers we reviewed. It's quiet compared to many other bathroom dehumidifier units.
The unit measures just 50 dB while the average best dehumidifier for bathroom use comes in at 53.2 dB.
We like that the 1100 is low on power consumption. The power draw for this product is 22 watts. That means you can use it longer with less on the electric bill.
It also has a plugin and use set up. There is one easy to operate on and off button without the need to program settings each time you use it.
- Removes musty smells and unpleasant odor
- 16-ounce water reservoir
- Full tank LED indicator light
- Auto shutoff when full
- No drain tube
Frigidaire 30 Pint
If you've got a problem with high humidity and need a tank with sufficient water capacity, this is a good choice.
The total water capacity for the Frigidaire 30 is 7.6 pints, or 0.95 gallons.
It's got continuous drainage, so if used near a draining source, it can handle up to 30 pints, or 3.75 gallons, of moisture per day.
You can run this throughout the day without excessive energy consumption.
Of all the best dehumidifiers we reviewed, this is the only one with an Energy Star certification making it the most energy efficient. It also has a digital display to make it easier to control.
- Full tank alert system with auto-shutoff
- Continuous operation with self-draining
- Energy Star Certified dehumidifier
- Removes bathroom mold, mildew, and unpleasant smells
- Less affordable than other best dehumidifier models
The Homelabs 16oz is a small dehumidifier unit built for light jobs. It can pull up to 9 ounces of moisture per day.
You have to empty the tank every few days as it lacks self-draining. This is the most affordable unit that we reviewed and is our budget pick for the best bathroom dehumidifier.
It has an auto-shutoff function with an LED indicator when the tank is full.
Many of the best bathroom dehumidifier reviews noted this as an essential feature. You can use this in bathrooms up to 150 square feet (sq ft) in size.
- Auto-shutoff to avoid spillage
- Compact size fits tight spaces
- 2-year home appliances warranty
- Most affordable bathroom dehumidifier
- Not good with high moisture levels
Ivation 13 Pint
The Ivation 13 pint dehumidifier works well in small to medium-sized bathrooms.
The tank capacity on this is ½ gallon with continuous draining to remove up to 13-pints of moisture from the air per day.
With a total recommended usage area of 270 cubic feet, this may be an excellent choice if the humidity level in your bathroom is regularly too high.
We liked the LCD interface, which made the initial set up easier. There are a range of features, including adjustable humidity controls, vent settings, and sleep timer control.
- Multiple drain options
- Works in temperatures from 33°F to 104°F
- Easy clean washable filter
- Programmable memory settings
- Drain hose can be challenging to connect
There is no compressor in the ProBreeze 1200, which provides quiet operation compared to other best small dehumidifier units we tested.
This is a good option in master bathrooms that need continuous use as the 16-ounce water tank ensures it will take a few days to fill up.
The 1200 will pull out up to 9 ounces of moisture from the air each day, making it suitable on lighter jobs.
According to the manufacturer, this works best 150 square foot rooms or smaller.
It has an auto-shutoff function, so you don't have to worry about the tank spilling over. It has an auto-shutoff function, so you don't have to worry about the tank spilling over.
- 2.4lbs total weight makes moving easier
- 12-month warranty
- LED indicator light when full
- Easy empty water tank
- Hard to clean water tank
Keystone 30 Pint
The Keystone 30 pint is good with larger rooms up to 1500 square feet. It has a continuous drain option allowing you to keep it running all day. We don't like that the hose isn't included.
A feature we found to be helpful is the auto-restart memory function. The unit will save your settings so if there is a power outage, it will kick back on to your previous settings.
The electronic controls and LED display make setting it up easy. You can set this up to run all day or use the 24hr timer to run at certain times.
- Auto defrost option in colder weather
- Removes up to 3.75 gallons of moisture daily
- Suitable with 1500 sq ft spaces
- 1-year parts and labor warranty
- Less energy efficient than other models
The Afloia 2000 provides a middle ground between the performance of the Frigidaire 30 and the price of the ProBreeze 1200.
The water tank capacity is 68 ounces, or 0.53 gallons with the total rate of removal up to 26 ounces of moisture each day.
It doesn't come with a continuous drain feature. If you are planning on running this all-day, it may become tedious having to empty the tank rather than having self-draining.
During testing, we found the unit to have quiet operation, which was a plus.
- High dehumidification capacity
- Easy to use one-button control
- Peltier technology for lower power consumption
- 2-year free replacement and lifetime support
- No continuous use drainage option
The Hysure Portable ties with the Homelabs 16oz as the most affordable of the best dehumidifier units we tested and reviewed.
What stood out to us was the whisper technology, which keeps this unit quiet during use.
You can use this in a small master bathroom without it making a lot of noise overnight.
It's better for smaller to mid-sized bathrooms with the recommended size being between 107 and 215 square feet.
You will also want to avoid using this in colder areas as there is no defrost system. The favored climate for optimal performance is around 86°F.
- Automatic shutoff when full
- 2.62 total pounds for easy portability
- Whisper technology for lower noise level
- Tied for most affordable dehumidifier
- Does not work well in colder environments
Crane Odor Reduction
Suitable for small to medium-sized bathrooms of no more than 300 square feet. The Crane dehumidifier is for lighter humidity levels.
The unit is smaller compared to some of the others we tested. The total water tank capacity is ½ gallon.
It lacks a continuous draining option, so you will need to empty the reservoir manually.
There is an automatic shutoff when the tank is full. However, a few users have complained that this sometimes doesn't work correctly. The dehumidify rate is 20 ounces, or 0.5 gallons each day.
- Compact design fits small bathrooms
- Timer function
- Reduces bacteria, dust mites, mold, and mildew
- Antimicrobial material in water container
- Small water tank capacity
The KEDSUM 1200 is another dehumidifier that uses Peltier technology to improve power consumption and reduce noise levels.
We immediately noticed how quiet this unit was during testing, and many users made similar comments from our research.
If you have a small bathroom and want a light dehumidifier, this may be the right solution.
The total coverage area is no more than 150 square feet, with a daily moisture removal rate of 8.8 ounces maximum.
The reservoir capacity for the 1200 series is 16 ounces and, without a continuous drain option, will need to be emptied manually.
- Energy efficient Peltier technology
- Auto-shutoff when the tank is full
- Many users noted it's quiet
- Small size won't take up much space
- No continuous draining option
Bathroom Dehumidifier Buying Guide
How big of an area the best dehumidifier for bathroom use can effectively suck moisture out of is known as the coverage area. The volume is measured in a few different ways, including square foot, cubic foot, or square meters outside of the United States.
Before purchasing a bathroom dehumidifier, it's essential to get an estimate of the volume of your bathroom. To do this, you find the measurements for the length, width, and height. Then, you take the numbers and multiply them (L x W x H=V in cubic feet).
“ cubic measurements take all three dimensions into consideration. This will tell you the volume of a given area”
- Paul Bianchina, Contractor/Author 
Make sure to get a dehumidifier for bathroom use that exceeds the volume of your room. If you purchase a dehumidifier that is too small or right at the size of your bathroom, it may not work efficiently enough to do the job.
The capacity will dictate how much water the dehumidifier can hold before you have to empty it. The best dehumidifier for bathroom use will have larger water tanks requiring you to empty it less frequently.
To figure out how often you will have to empty the container, look at the tank capacity rating for the unit you are considering. Then, look at the dehumidifying rate discussed below. So, for example, if a unit has a 20oz tank and removes moisture at a rate of 9oz of moisture each day, the container will require emptying every two days.
This number shows you how much moisture the dehumidifier can pull from the air in a day. You will see this measured as oz per day, gallons per day, or pints per day. To get an accurate understanding of how much humidity needs removal, you should use a hygrometer to measure the humidity level in your bathroom .
A hygrometer is an often inexpensive tool for measuring humidity in an area. Using this tool, you can calculate the actual dehumidify rate needed to remove excess moisture from your bathroom.
“Indoor air dehumidification can be used [to prevent mold], in which dehumidified air is circulated through a cooling coil, where water is condensed and drained.”
- Michal Krzyzanowski, World Health Organization Europe 
Self Draining Capabilities
The best dehumidifier for bathroom use will have self-draining capabilities. Usually, by way of a hose connecting to the water tank, which allows it to drain automatically rather than storing in the container.
If you plan on running the dehumidifier continuously throughout the day and night, this is an important feature. If not, you will have to monitor the container regularly and empty the water manually.
Size and Weight
Size and weight limitations will be highly subjective to your specific needs. If you have a small bathroom without a lot of space, you want a more compact dehumidifier. Remember that a smaller unit will also mean a smaller water tank and generally a lower rate at which the unit can dehumidify a room.
Yes, it is safe to leave the device operating while you take a shower so long as no electrical wires are exposed.
You should empty the water tank when the unit becomes full. This will be different for each unit and will also depend on how much moisture is pulled from the air. Look at the dehumidifying rate and the tank size to calculate how often you will have to empty the tank. Also, look for a continuous draining option that self drains.
The size of the dehumidifier you need for your bathroom will depend on the moisture level in the air and how large the room is. The first thing to calculate is how much moisture needs removing using a hygrometer.
Next, calculate the volume of your bathroom. The larger the bathroom and the more moisture needing removed, the larger a bathroom dehumidifier will need to be. Look for Energy Star certified appliances for larger dehumidifiers to save on your energy bills .
Yes. A dehumidifier will help with mold in the bathroom. Bathroom mold forms due to excess moisture present in the air and on surfaces such as walls and in wood. A dehumidifier will remove the excess moisture creating a less hospitable environment for mold and mildew and improve air quality overall.
Some tips to reduce humidity levels in your bathroom include taking shorter and cooler showers and opening windows and doors to prevent steam from getting trapped. Also, wiping down excess moisture on mirrors and other surfaces after taking a shower is essential. Doing these things, along with using a dehumidifier, will help to keep moisture in check.
After all of our experiments were concluded, the best dehumidifier for bathroom use came down to the Eva Dry. It has a consistent rating from thousands of users and did well in all of our testings. We particularly liked the Peltier technology, which makes it quieter to operate with better energy efficiency .
The auto shut-off allows you to continuously run the bathroom dehumidifier without fear of the tank overflowing and spilling over. Many users have also praised the model's affordable price when compared to many other high-performance bathroom dehumidifier units.
This is a good option if you have a small bathroom and want some of the best performance without a large dehumidifier that takes up too much space.