Buyer's Guide & Information

Best Dehumidifiers for Bathrooms Reviewed

We have reviewed and compared the best dehumidifiers for bathrooms. These brands keep ventilation flowing in your home.

Best Portable Model

SEAVON Electric Upgraded Dehumidifier for Home
SEAVON

Our Top Pick

Inofia HD161A - 30 Pints Dehumidifier
Inofia

Best Budget Option

hysure T8PLUS Demunidifier
hysure

Moisture and high humidity in the home can lead to health and structural issues. Areas in our homes like laundry rooms, basements, and crawl spaces are prone to humidity and moisture build-up, but so are our bathrooms.

Most bathrooms will have a ventilation fan, but they aren’t very adept at removing moisture or lowering humidity on their own. This article focuses on the best dehumidifiers for your bathroom. Along with reviews and purchase considerations, we also cover running costs and sizes to meet all your needs.

Dehumidifier for Bathrooms Compared

ModelPints/Oz per dayAreaTemp RangePrice
Inofia30 Pints per day1056 sq ft41 – 95 degreesCheck Amazon
SEAVON9 Oz per day195 sq ft59-86 degreesCheck Amazon
Pro Breeze18 Oz per day250 sq ft59-86 degreesCheck Amazon
hysure10 Oz per day215 sq ft68-86 degreesCheck Amazon
yaufey30 Pints per day1500 sq ft59-86 degreesCheck Amazon
MIDEA MAD50 C1ZWS50 Pints per day4500 sq ft41-95 degreesCheck Amazon
TOSOT35 Pints per day3000 sq ft45-90 degreesCheck Amazon
Vremi 1 Pint per day150 sq ft59 – 90 degreesCheck Amazon

Signs That You Need a Dehumidifier in Your Bathroom

There are many signs that you need a dehumidifier in your bathroom. The most obvious of which is mold. High humidity and excess moisture help promote mold growth, and with less airflow in bathrooms, mold grows quickly and easily.

There are other signs, though, since mold may not be visible right away. You should also look for:

  • Damp items in your bathroom.
    If you keep things like towels, toilet paper, or even your shampoo bottles in the bathroom and they are constantly damp or wet to the touch it can mean too much humidity.
  • Foul odors.
    Mold, mildew, and wet wood or plaster can give off foul odors that linger no matter how much you clean.
  • Condensation on doors and walls.
    Even long after your shower, you may notice condensation running down your walls or even dripping from the ceiling.
  • Wood rot.
    In severe cases the wood subfloor, wall beams, or ceiling joists can rot away from the moisture.

Choosing the Right Dehumidifier for your Bathroom

Coverage Area

Two factors determine the coverage area. The first is the square footage of the room, which is measured by multiplying the space’s length and width. Second is the machine’s moisture removal, measured in ounces or pints per day (PPD). There is a detailed section below the reviews to help you get the perfect size and measurements for your bathroom dehumidifier.

Temperature Requirements

The ambient temperature and regional climate will play a big role in your new dehumidifier. Hot, dry, or arid regions will get less use from a dehumidifier than higher humidity regions. It is important to know the temperature range of your area as well as the operational range of the model you are looking to buy.,

Water Tank Capacity

Portable dehumidifiers will come with a water tank. This is the tank that collects the moisture removed from the air. Each one will have a varying capacity, and when full, you will need to empty it manually. Obviously, the larger the capacity, the less often you need to empty the tank.

Drainage & Ducting

More permanent installation type dehumidifiers will come with ducting and drainage options. Ducting will allow you to pinpoint the airflow or attach to existing ducts used by the HVAC system.

The drainage options have three options. Manual tank emptying is most common in portable models, as noted above. You also have automatic draining, done through either a pump or gravity drain. These will remove the water collected automatically through a drain hose into a sink, toilet, or tub drain.

Other Features of Dehumidifiers
Filter Indicator Light

Filter change for dehumidifiers is based on hours run. Instead of relying on memory for how long you have run the dehumidifier, filter change indicator lights are small, visual reminders it is time to change or clean the filter.

Auto-Humidistat

Humidistats measure the humidity levels in the air. Dehumidifiers with auto-humidistats allow you to set the desired humidity level and will only run when levels are higher than the setting. This helps minimize run time and saves you money on your monthly energy bill.

Auto Reset

If you ever lose power, dehumidifiers equipped with auto reset (also called auto restart) will store your settings and remember them when power is restored.

Low Temperature Settings

Not all dehumidifiers can work at low temperatures (usually designated as 41 degrees Fahrenheit or below). Those equipped with low temp settings can be used in more extreme temperatures without disrupting functionality.

Frost Sensor

For those running in lower temperatures, frost sensors allow the machine to monitor its pumps, motors, and coils for frost or freezing. These sensors will place the units in a defrost mode when triggered to keep the unit from freezing up.

Digital Controls

Digital controls offer you more features and a more accurate way to see and use the settings. Usually made with touch-sensitive buttons and LED lights or an LCD panel, digital controls are much batter than manual or analog options.

Noise levels

Most portable dehumidifiers are pretty quiet during operation. The average range for all dehumidifiers falls between 38 and 60dB. For use in the bathroom, where it can echo or cause a distraction, lower decibel ratings are preferred. Anything lower than 51dB is considered a near-silent operation.

Warranty

Dehumidifier warranties come in all coverage and duration terms. A good warranty will be between 2 and 5 years, while poorer warranties will be 90 days to 1 year. Excellent models will come with more extended warranties.

Price

Finally, the overall price is one of the biggest deciding factors. You want the best machine possible for your money, but you also want to stay within budget. If you plan to only use the dehumidifier in a single room for short periods, you may not want to pay higher prices. Make sure the price is affordable and won’t set you or your bank account back too far.

8 Best Dehumidifiers for Bathroom Reviewed

1. Inofia

Our Top Pick
Moisture Removal30 Pints per day
Coverage1056 square feet
Water Tank Capacity0.5 gallons
Optimal Temperature Range41 – 95 degrees
Dimensions12.2 x 8.2 x 17.3 inches

The Inofia dehumidifier is easily our top pick. This model has a lot of power, pulls a ton of moisture, and is packed with features. Everything you could need in a bathroom dehumidifier is found in this model.

While this is among the more expensive models on the list, it is true, in this case, that you get what you pay for. Not only can this compact dehumidifier move 112 CFM of air while removing up to 30 pints of moisture per day. In any sized bathroom, wall and mirror condensation are gone in minutes, and the humidity level will drop below 60% within half an hour.

This model does come with a 0.5-gallon tank, which is a little small for the moisture removal rate. You will need to empty it after every use, or for continuous use options, at least three times per day. However, there is a continuous drain option, so you don’t have to empty the tank at all.

Using the included 5-foot drain hose, you can use gravity to drain the unit into the sink, toilet or tub. As long as the dehumidifier is higher than the drain, you won’t have to ever worry about emptying the tank by hand again.

What’s even better is that you can control the exact humidity level in your bathroom. As we know, anything below 60 will inhibit mold growth. You can set this model to a humidity level, and it will run until that level is reached. Using the auto-humidistat, any time the humidity rises above the set level again, the unit will turn on and run to fix the problem.

It does only offer a 1-year warranty, but customer service is great. Even after your warranty expires, you still get lifetime tech support should you ever have any questions or problems.

Pros

  • Lifetime tech support
  • Dual drain option
  • Auto-humidistat included
  • Drain hose included
  • Washable filter

Cons

  • 1-year warranty
  • Must set for 24 hours before first use

2. SEAVON

Best Portable Dehumidifier For Bathroom
Moisture Removal9 ounces per day
Coverage195 square feet
Water Tank Capacity0.125 gallons
Optimal Temperature Range59-86 degrees
Dimensions7.2 x 6.2 x 11 inches

The best portable dehumidifier for your bathroom doesn’t even have to stay in your bathroom. The Seavon dehumidifier is small, compact, and quite powerful for its size, plus you can move it to any room you like.

The capacity of this model isn’t going to blow your mind. It will remove up to 9 ounces of moisture from the air per day. However, it is more efficient than a vent fan and much much quieter. You can even put this little guy on your nightstand and won’t hear it running while you sleep.

The tank holds 0.125 gallons (about 16 ounces), so it will need to be emptied every day or two. It is also your only draining option. Unlike our top pick, you don’t have the luxury of a continuous gravity drain.

However, with the digital control panel, the machine won’t let itself overflow, either. When the tank gets full, you will get a flashing LED light as well as an audible tone to let you know the tank needs to be emptied. It will also shut off to prevent overflow.

Because of its size, you can move it anywhere you like. After it is done in the bathroom, for example, you can put it in your kitchen while you cook. The 1-year warranty is a bit disappointing, but for the cost and size, it is plenty good enough.

Pros

  • Ultra-portable
  • Ideal for small and medium sized bathrooms
  • Quiet operation
  • Fits on any counter or shelf

Cons

  • 1-year warranty
  • Tank drain only

3. Pro Breeze

Best Small Dehumidifier For High Humidity Bathrooms
Moisture Removal18 ounces per day
Coverage250 square feet
Water Tank Capacity0.4 gallons
Optimal Temperature Range59-86 degrees
Dimensions6.6 x 9 x 12.69 inches

The Pro Breeze dehumidifier is best for high humidity bathrooms. Its compact size and energy efficient use of a Peltier pump for moisture removal makes it ideal for daily and near-constant use.

It features a sizable water tank, considering the compact nature of the machine. With nearly half a gallon capacity, you only need to empty the tank every few days. When that time does come, you don’t have to worry about spilling either.

Unlike most other models, the water tank has a cover with a rubber plunger. You can remove the tank and transport it to the nearest drain, pull the plunger and empty the tank without spilling a drop.

While it doesn’t offer auto-restart or have a humidistat, you can easily turn it on or off with a touch of a button. It is the only control option you have, so it is easy to use. When the tank gets full, you will be alerted by an LED light on the top, and the machine will stop running to prevent tank overflow.

The Pro Breeze model also only comes with a 1-year warranty. However, customer service is easy to get a hold of and is always happy to help with your issues.

Pros

  • Full tank indicators
  • Quiet operation
  • No-spill water tank
  • Highly energy efficient

Cons

  • 1-year warranty
  • No continuous drain option
  • No humidistat

4. hysure Dehumidifier Compact Deshumidificador

Best Budget Option For Small Bathrooms
Moisture Removal10 ounces per day
Coverage215 square feet
Water Tank Capacity0.2 gallons
Optimal Temperature Range68-86 degrees
Dimensions6.4 x 4.2 x 10.5 inches

The dehumidifier from hysure is the best budget-friendly model for smaller rooms like bathrooms or kitchens. It has a surprising amount of moisture removal for its small size and will make short work of bathroom condensation.

Like most mini dehumidifiers, the controls are quite simple. There is only a single button that turns the machine on or off. It does have a full tank indicator light, but other than that, it just runs. You don’t have a humidistat control option, nor can you view the current humidity.

What you do get is a decent sized water tank for draining that needs to be emptied about every other day (with constant use). However, if you only run it while you are in the bathroom, this can be stretched to every few days instead.

The biggest draw to this machine is the noise level. It only produces about 38dB of noise, making it one of the quietest models on the market. Even running in your bathroom where noise is amplified or can echo, you won’t know it is running.

The warranty is the worst part of the machine, though. There is a 30-day money-back promise and 2-years of customer support. Beyond that, though, you are on your own.

Pros

  • Simple one-button control
  • Full tank indicator
  • Energy efficient thermo-electric dehumidifier
  • Less than 39dB noise level

Cons

  • 30-day money-back guarantee, 2-year customer service
  • Water tank drain only

5. yaufey

Best Dehumidifier For Bathroom Without Vent
Moisture Removal30 Pints per day
Coverage1500 square feet
Water Tank Capacity0.4 gallons
Optimal Temperature Range59-86 degrees
Dimensions12.2 x 8.2 x 18.9 inches

The yaufey model is best for windowless bathrooms. Instead of relying on a vent fan, you can quickly and efficiently remove moisture from the air and lower humidity in your bathroom, regardless of size.

Working in up to 1500 square feet of space, this dehumidifier pulls up to 30 PPD of moisture with a high-efficiency fan and dual drain options. The continuous drain option is best since the water tanks is so small.

If you decide to use the tank for water draining, you should know that you will need to empty it every few hours. While the machine will remove up to 9 gallons of water per day, the tank will only hold about half a gallon of water.

There is an auto shut off and full tank indicators, of course, but it is still a lot to remember, especially if you leave it running after a morning shower while you go to work. However, with the included 6-foot drain hose, you can have the unit drain while it runs and forget the tank altogether.

The warranty isn’t the best, but it is sufficient. The company offers a 30-day money-back promise along with a 12-month return policy. There is also lifetime support for the dehumidifier should anything go wrong or you have questions. However, customer service is only available through email.

Pros

  • 30 day refund, 12 month replacement, lifetime customer support
  • Full digital control panel
  • 6-foot drain hose included
  • Dual drain options

Cons

  • Small capacity tank
  • Customer support through email only

6. MIDEA MAD50C1ZWS

Best Dehumidifier For Large Bathrooms
Moisture Removal50 Pints per day
Coverage4500 In square feet
Water Tank Capacity1.6 gallons
Optimal Temperature Range41-95 degrees
Dimensions15.94 x 11.54 x 24.29 inches

The best dehumidifier for large bathrooms and also for windowless bathrooms comes to you from Midea. This dehumidifier is powerful, has a high capacity, and can even work for multiple rooms.

With a coverage area of up to 4500 square feet, your large bathroom isn’t a problem. Even for large master baths with a Jacuzzi tub, shower, and dual sinks, this model can keep up. It will remove up to 50 pints per day, which means you don’t need to worry about condensation, foggy mirrors, or mold.

With a 1.6 gallon tank capacity, your manual emptying times are limited. However, if you don’t want to have to deal with the tank at all, the continuous drain option works with any garden hose and gravity to drain while it operates.

The garden hose isn’t included, and you will need to position the dehumidifier higher than the drain, which can pose a problem in some bathrooms because of its size. However, with a small, sturdy shelf or a built-in floor drain, you won’t have any issues.

This model also works at low temperatures and features a defrost cycle along with an auto-humidistat so you can set your humidity levels, turn it on, and walk away. If the power goes out, this model also features an auto reset function to remember your settings and continue operation when power is restored.

The 1-year warranty should be better, but it does cover everything except the washable filter. Should anything go wrong, customer service is just a phone call away.

Pros

  • Defrost sensors
  • Auto-humidistat and auto-restart functions
  • Continuous drain option
  • High moisture removal rate

Cons

  • 1-year warranty
  • Drain hose not included

7. TOSOT

Most Energy Efficient Dehumidifier For Bathroom
Moisture Removal35 Pints per day
Coverage3000 square feet
Water Tank Capacity1.5 gallons
Optimal Temperature Range45-90 degrees
Dimensions14.76 x 11.38 x 24 inches

The best quiet bathroom dehumidifier is from TOSOT. This dehumidifier is among the most energy efficient models on the market and has whisper quiet but high capacity operation. Ideal for master bathrooms and the adjoining bedroom, this model fits almost any home.

When in operation, this model will pull up to 35 PPD of moisture from the air. It can reach up to 3000 square feet, making it ideal for both master bathroom and bedroom dehumidifying.

In smaller spaces, the auto-humidistat feature will allow you to control how often it runs without the worry of running up your electric bill. For those that prefer to shower at night, it also features quiet operation so you can sleep while it is running without being disturbed.

It does have a 1.5 gallon water tank but also features continuous gravity draining if needed. The hose isn’t included, but any standard garden hose will fit the drain adapter. The 3-speed fan gives you even more control over how much the machine runs, too.

The warranty is a dismal 12 months, and it is made worse by a difficult to reach customer service. However, the machine is built well, and most issues are simple problems solved by a machine reset.

Pros

  • Filter indicators
  • Auto-restart function
  • Washable filter
  • 48- 52dB quiet operation
  • 3-speed fan

Cons

  • 1-year warranty
  • Drain hose not included
  • Customer service difficult to get a hold of

8. Vremi 1 Pint Compact Portable Dehumidifier

Best Mini Dehumidifier For Bathroom
Moisture Removal1 Pint per day
Coverage150 square feet
Water Tank Capacity0.4 gallons
Optimal Temperature Range59 – 90 degrees
Dimensions7 x 4.9 x 11 inches

Vremi has a compact dehumidifier that is the best dehumidifier for very small bathroom. With a range capacity of 150 square feet, you can easily replace your vent fan with this model and save electricity.

Because it is so small, it should run longer than you may expect, but it offers an auto-humidistat that lets you control the humidity level. When the set level is reached, the machine will shut off, which is almost unheard of in compact and portable dehumidifiers.

While it removes about a pint per day of moisture, the water tank holds a little over 3 pints, meaning you only need to ensure the tank is empty every few days. There is an indicator to let you know the tank is full, and the machine won’t operate again until it is drained.

Because it is highly portable, it also works in other small rooms. It can help reduce humidity while you cook, or you can place it on the end table to have fresher, more breathable air while you watch TV.

It is rated as a quiet unit, but there are some reports that it is much louder than advertised. Even with the complaints, though, the machine hasn’t been known ever to exceed 55dB. The 1-year warranty covers all parts and labor, but it should still be much longer.

Pros

  • Extremely portable
  • Works in kitchens and cabinets, too
  • Auto-humidistat included
  • Full tank indicator
  • Low maintenance

Cons

  • 1-year warranty
  • Not as quiet as advertised

Bathroom Dehumidifier Sizing Guide

Proper sizing of your dehumidifier is crucial. You want to ensure the machine is big enough to handle the space and conditions but not so large it overpowers the room or your energy bill.

To appropriately size, you need to know your bathroom’s square foot measurement (and possibly attached bedroom). From that measurement, you can get a good idea of the size dehumidifier needed.

Dehumidifiers are measured by their capacity, the square foot coverage area, plus the moisture removal rating. The moisture removal rating is a measurement of the amount of moisture removed, per day, at a temperature between 65 and 80 degrees with a humidity level of 60%. It is generally measured in pints per day (PPD), but small units may measure in ounces.

To match up size ratings with your square foot measurement is pretty simple. Each model will have a size rating that matches the square foot. Smaller spaces like bathrooms will generally need 30 PPD or less. 20 PDD may even be too large, depending on the power and efficiency of the machine.

Dehumidifier Running Costs

Running a dehumidifier will raise your energy bill simply because it uses energy to work. How much it increases the energy costs, though, is determined by several factors.

  • How much does your utility company charge for energy?
    This is measured in kilowatt-hours and has a national average of 13 cents.
  • Climate and relative humidity.
    Your region will vary in average temperature and humidity with higher humidity zones and hotter temperatures needing more dehumidifying than the others.
  • Energy draw of the dehumidifier.
    You will want to know the wattage draw of the dehumidifier. If it isn’t listed, you can find out by multiplying the voltage by the amps. Take your watts and divide by 1000 to get the kilowatts.
  • How long the unit runs.
    Each kilowatt-hour will cost you the figure you’ve come up with for your area. How many hours per day you run the dehumidifier will tell you the daily costs.

With all of this information, you can come up with a fairly accurate annual energy costs for the model you are looking at buying. While each one is different, there are averages. Small, portable dehumidifiers average about $25 to $32 per year to run 5 hours per day. Larger units (those rated at least 70 PPD) can easily reach $320 to $400 per year or more.

Tips to Help Reduce Humidity in Bathrooms

Reducing the humidity in your bathroom isn’t something we often think about, but should. Several methods help reduce the moisture and humidity that builds up during a bath or shower.

  • Turn on the vent fan.
    Properly installed and ducted vent fans will pull air and moisture from the bathroom to the outside. You should turn the vent fan on before you start running water and leave it on up to 30 minutes after you leave.
  • Remove anything wet.
    Your clothing, towels, floor mats, and anything else that gets wet during your bath or shower should be moved out of the bathroom to dry.
  • Squeegee and mop.
    Use a squeegee on the mirrors, walls, and tub area to push all the condensation down the drain and out of the bathroom to speed up drying time. Mopping up the floors will help, too.
  • Take cold showers or heat the bathroom.
    Humidity needs a cold surface to condensate on. You can combat this by lowering the temperature of your shower to reduce condensation or raise the temperature of your bathroom walls, door, and ceilings with a space heater before you shower.
  • Use a dehumidifier.
    The easiest and least obtrusive method is simply turning on the dehumidifier to lower the humidity back to normal ranges.

People Also Ask (FAQ)

What’s the ideal humidity level for a bathroom?

To prevent wood rot, mold and mildew growth, and respiratory issue flare-ups, the ideal humidity level should be between 40 and 60%. In the bathroom, you can even go as low as 30% before it becomes too arid. Anything below 60% is a comfort level that needs to be adjusted to suit your needs.

Will a dehumidifier help with mold in the bathroom?

Yes, a dehumidifier will help stop the growth and spread of mold and mildew. Mold requires humidity levels above 60% to grab hold, grow, and flourish. The ideal humidity level to prevent mold growth is between 30 and 50%.

Is it safe to shower while a bathroom dehumidifier is running?

Running your dehumidifier while you shower can help prevent moisture from forming on the walls and mirrors. However, doing so is a waste of energy. Your shower will put out more humidity and moisture than the dehumidifier can remove. It is best practice to use the vent fan while you shower and turn the dehumidifier on when you are done running the water.

Where in the bathroom should I place a dehumidifier?

A central location or against the wall is an ideal placement for a bathroom dehumidifier. As long as no one will trip over it, you can place it almost anywhere. If you have a mini dehumidifier (portable), you can place them on the counter or a shelf, too.

Should a dehumidifier run all the time to keep my bathroom moisture-free?

In most cases, it is recommended to run a dehumidifier for up to 12 hours per day. Ideally, you will have a model that shuts off automatically and only runs as needed. However, it isn’t practical to run a dehumidifier in a small space such as a bathroom 24 hours a day.

How do I clean and take care of these units?

Cleaning a dehumidifier is pretty simple. The main factors are the water tank and filters. You should clean the filters regularly and empty the water tank at least daily. Using these two cleaning methods will prolong your dehumidifier’s life and keep it from overheating or overworking.

Is it possible to install a bathroom exhaust fan with a dehumidifier?

It is possible and should be done. The bathroom dehumidifier vs. exhaust fan debate can get confusing. While bathroom vent fans don’t move a whole lot of air out while you are using the shower, they can expel the humid air afterward, reducing the amount of work your dehumidifier needs to do in order to maintain humidity levels.

What is the difference between cheap & expensive models on our list?

The primary difference between cheaper models and more expensive models is how they perform. The amount of moisture removal and better filtration are the most significant differences. More expensive models will remove more humidity, operate faster, and perform better. They also have better controls, more options, and contain auto-restart and auto-humidistat options that cheap models don’t.

Where is a good place to buy these units?

You can purchase a dehumidifier anywhere home goods are sold. This includes large box stores like Home Depot and Lowe’s. If you are more of an online shopper, though, you can save money, get more selection and better shipping costs by shopping through Amazon or Sylvane.

Conclusion

The best dehumidifier for your bathroom is a hard model to track down. There are many consideration factors and measurements to take before you know exactly what you are looking for. Hopefully this article has helped you figure out what features you need and which options you can ignore to help narrow your field of choices.

If you still don’t know, take another look at the top pick. The Inofia dehumidifier works with or without a vent fan, has a 30 PPD removal capacity, and works perfectly in rooms under 1000 square feet. It is a stylish model that looks good anywhere you put it in your bathroom.

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