Buyer's Guide & Information

Best Small Dehumidifiers Reviewed

These smaller models are excellent for homes, RVs and more.

Dehumidifiers are a useful tool for reducing and preventing the presence of high humidity which can contribute to mold in the house. However, not all dehumidifiers are the same. Some are better suited for smaller rooms and would be inefficient in large rooms.

We have put together this comprehensive guide on the best dehumidifiers for smaller rooms in your home. These dehumidifiers are great for compact spaces and places, such as apartments, bedrooms, closets, and more.

Using a Small Dehumidifier at Home

Although their sizes may vary, all dehumidifiers work the same. They remove moisture from the air and cycle dry air back into the room. Depending on the humidifier’s size and overall power, some dehumidifiers are better for small rooms rather than larger ones.

For Small Spaces

Small spaces that may need a dehumidifier include bathrooms, bedrooms, closets, and even cupboards. These areas may have less ventilation and open-air, so they tend to be very prone to retaining moisture and forming mold. Small, closed-off rooms can benefit greatly from having a dehumidifier to provide some ventilation. Elsewise they can develop mold and mildew relatively easily.

Small Sized Devices

Compact dehumidifiers are a great option because not only are they capable of cleaning small spaces, but they can also be moved around to trouble areas elsewhere in your home. Small devices are lightweight, convenient to move, and have a small profile that makes them discreet and able to be placed virtually anywhere. They are also relatively inexpensive and easy to maintain compared to their larger counterparts.

Small Dehumidifiers Compared

Model Unit Size Area Pint Size Price
Pro Breeze 7 x 8 x 11 inches 150 sq. ft 0.5 Check Amazon
Pure Enrichment Deluxe 10.5 x 7.7 x 6.9 inches 0.6 Check Amazon
Waykar 23 x 14 x 11 inches 2,000 sq. ft. 40 Check Amazon
DEERMA 8 x 3 x 3 inches ~16 sq. ft. 0.3 Check Amazon
ALROCKET 5.7 x 5.7 x 8.9 inches 260 sq. ft. 1 Check Amazon
SEAVON 7.2 x 6.2 x 11 inches 195 sq. ft. 0.6 Check Amazon
Eva Dry 9 x 8.25 x 2.88 inches 49 sq. ft. 0.375 Check Amazon

Picking the Right Dehumidifier for Small Spaces

Dimensions & Weight

The most important features are the size and weight. Small dehumidifiers should be able to be picked up and moved around easily. They should also be unobtrusive and be able to be placed out of the way of any major thoroughfares in your home.

Coverage Area

The coverage area refers to how much effective floor space your humidifier can cover and is measured in square feet. For small rooms, a coverage area anywhere between 150 sq. ft. and 500 sq. ft. should be more than enough to cover the whole room.

Dehumidification Performance

Dehumidifier performance is typically rated in “air changes per hour” (ACH) or “cubic feet per minute (CFM). These measurements refer to how much air a dehumidifier can channel in a given unit of time. Dehumidifiers are also rated based on the relative humidity levels (RH) that they can maintain.

Water Tank Capacity

Most small dehumidifiers have a gallon or less water tank capacity. Generally, these tanks must be removed periodically if the standing water can actually contribute to more mold formation. Depending on the room’s size, you should look for a dehumidifier with a larger tank capacity.

Power Consumption

One benefit of small dehumidifiers is that they are usually very energy-efficient. Power consumption is generally rated in kilowatts per hour (kWh) or watts per hour (Wh). A decent small dehumidifier operates at about 280 Wh.

Other Important Dehumidifier Features
Mobility wheels

Wheels on the frame make the dehumidifier much easier to move and position. Not all models come with this feature but it’s an important one the heavier a dehumidifier is.

Integrated timers

Integrated timers are useful if you only need to run the dehumidifier for a few hours at a time instead of all the time. This can be a great function when you are sleeping or if you want to come home to a comfortable home.

Water level indicator light

This light will tell you when the reservoir tank is full and needs to be replaced. This saves you checking manually as it is often overlooked when maintaining these devices.

Auto shutoff

Auto-shutoff mechanisms turn the machine off when the tank is full and provides safety within the home.

Speed settings

Speed settings allow you to change the intensity of the machine’s performance. 2-3 settings are standard and can allow for quicker or slower dehumidification within the home.

Drain hose

Some small humidifiers allow you to attach a hose to drain the water reservoir. This is only needed for certain styles and replacement can be purchased on Amazon or at hardware stores.

Removable filter

You should also be able to remove the filter for periodic cleaning and replacement. This is another overlooked aspect of using these devices so have the ability to replace and clean will keep the air clean.


Handles, like wheels, make the humidifier easier to move. Unlike wheels, these do tend to come on many smaller models.


A small, compact humidifier should cost you anywhere between $30-$200. Some higher-end models may be more expensive but may have a wider range of functions.


We would recommend buying a dehumidifier that has at least a 1-year warranty. That way, you can return it if you run into any problems.

7 Best Small Dehumidifiers Reviewed

1. Pro Breeze

Best Small Dehumidifier Overall
Dimensions 7 x 8 x 11 inches
Coverage 150 sq. ft
Water Tank Capacity 0.125 gallons
Moisture Removal 0.5 pints
Optimal Operating Temperature 58-86 degrees-F

First up on our list is our pick for the best small dehumidifier overall. The Pro Breeze Electric Mini Dehumidifier has a coverage range of 150 sq. ft. and can remove up to 9 ounces of water per day. It has a 16 oz. capacity water tank and has a small 0.55 kWh output per hour of operation.

The Pro Breeze also has an auto shut off valve that turns off the machine when the tank is full, and an LED light indicates that the reservoir is full. The Pro Breeze is highly energy-efficient and costs just a few cents a day to run. That means you can run it for days at a time without incurring any serious costs.

Additionally, there is a larger model of the Pro Breeze. This model can cover up to 250 sq. ft. and has the same compact profile and portability of its smaller cousin. Either way, each of these dehumidifiers are some of the best small dehumidifiers that money can buy.

Overall, the Pro Breeze is the best compact dehumidifier we have covered. It is light, efficient, convenient, and also very cost-effective. That is why it won our pick for the best overall compact dehumidifier.


  • Ultra-quiet and energy-efficient
  • Auto-shutoff mechanism
  • LED indicator for when the tank is full


  • Won’t work at low temperatures
  • Not extremely powerful

2. Pure Enrichment Deluxe

Best Small Dehumidifier for Bathrooms
Dimensions 10.5 x 7.7 x 6.9 inches
Water Tank Capacity 0.2 gallons
Moisture Removal 0.6 pints
Optimal Operating Temperature 86 degrees-F

Up next is the Pure Enrichment Deluxe, our pick for the best dehumidifier for bathrooms. This dehumidifier has advanced humidity controls and an auto-shutoff valve that turns the machine off when the tank is full. It is also very quiet and puts out about 50 decibels.

The Pure Enrichment also has a transparent water tank, so you always know exactly how full it is. The compact profile means it can fit easily next to a sink counter or next to the toilet or tub. An LED indicator on the back tells you when it is on and when the tank is full.

The Pure Enchantment also comes with a generous 2-year warranty so you can get a replacement if anything goes wrong. It is powered by 110V of electricity and can be used with most regular home outlets in the bathroom. Simply plug it into any outlet, and you are good to go.

The Pure Enchantment is the best small humidifier for bathroom use. It is compact, ultra-portable, and has a surprising amount of coverage for such a small device. Place it in your bathroom out of the way, and you will never have to worry about mildew in your bathroom again.


  • Simple switch interface
  • Transparent tank
  • Extremely quiet operation
  • Generous 2-year warranty


  • Relatively low tank capacity
  • Can overheat if not taken care of

3. Waykar

Best Dehumidifier for Small Houses
Dimensions 23 x 14 x 11 inches
Coverage 2,000 sq. ft.
Water Tank Capacity 0.66 gallons
Moisture Removal 40 pints
Optimal Operating Temperature Room temperature (!70 degrees-F)

The Waykar has won our pick for the best dehumidifier for small houses. It is very powerful and dependable for a compact dehumidifier and can cover up to 2,000 sq. ft., making it ideal for smaller homes. It can extract up to 40 pints of moisture per day and also has 360-degree wheels making it easy to place and move.

This dehumidifier also has intelligent controls that sense relative humidity levels and adjust to follow suit. The machine will automatically shut off when the tank is full. The Waykar comes with a generous 1-year warranty and 30-day money-back guarantee.

The Waykar also has a relatively large tank to run unencumbered for a while before needing to be emptied. It also comes with a convenient auto-drain function with a hose attachment for easy draining. Reviewers describe the Waykar as “one of the best dehumidifiers” that you can buy for the money.

So, if you are looking for an excellent portable dehumidifier for your home, then the Waykar is it. It has a surprisingly large area of coverage and is very powerful for its compact size. Place it in a corner out of the way and your house will feel less swampy, and you will be able to breathe easier.


  • Very powerful for a compact dehumidifier
  • Large tank capacity
  • Intelligent humidity sensor adjusts power and performance
  • 1-year warranty


  • Slightly bulky
  • No ducted drain option


Best Small Dehumidifier for Closets
Dimensions 8 x 3 x 3 inches
Coverage ~16 sq. ft.
Water Tank Capacity 0.03 gallons
Moisture Removal 0.3 pints
Optimal Operating Temperature Room temperature (~70 degrees-F)

This DEERMA humidifier is great for closets and has a unique design. Instead of a standard water tank reservoir, this dehumidifier uses silica gel balls that absorb moisture. Once the balls are full, it will dry out and they can be used again.

The DEERMA is ultra-compact and can be placed in the back of a closet or cabinet. You can tell when the beads are full as they turn from green to orange. The cylinder design is also an interesting choice and makes it even more compact.

One of the best features of the DEERMA is that you don’t have to empty out a water tray. The beads can be used for about 2-3 weeks before needing to be dried out, and they are reusable.

The DEERMA is a unique portable dehumidifier that can work in more than just closets. It can also be used in your car, RVs, refrigerator, cupboards, and even under your sinks in the kitchen and bathroom. The silica gel balls are a unique design choice and virtually eliminate any spillage or drainage issues. That also means that there is no standing water, so it won’t accidentally form more mold.


  • Unique silica gel absorption mechanism
  • Reusable and rechargeable
  • No leaking and no spillage
  • Extremely compact, great for closets


  • Require 12-15 hours to dry beads
  • Not very powerful

5. ALROCKET Small Dehumidifier

Best Small Dehumidifier for RV
Dimensions 5.7 x 5.7 x 8.9 inches
Coverage 260 sq. ft.
Water Tank Capacity 0.27 gallons
Moisture Removal 1 pint
Optimal Operating Temperature 41-122 degrees-F

Sitting at 5th is the ALROCKET. This small dehumidifier has a classic design and can cover up to 260 sq. ft. and pull out up to 1 pint of moisture per day. The ALROCKET’s tank can hold up to about 1/3rd of a gallon and operates extremely quietly at just 39 decibels. This mini humidifier also consumes only about 40Wh, so it costs only pennies a day to run.

The ALROCKET has an auto-shutoff function that will turn the machine off when the reservoir is full. It also has a simple one-touch design for easy operation and convenient LED indicators for when it is full.

The ALROCKET does not have any wheels, but it is still lightweight and portable. It is very versatile and can be used in RVs, bathrooms, bedrooms, and more. You can pick it up easily and place it under a table or in the corner. It is very quiet, so it will not disturb anyone in your RV.

The ALROCKET also is very easy to remove the tank and drain it. The tank is relatively small, so you will have to empty it somewhat frequently, but at the very least, it is easy to manage.


  • Extremely quiet operation
  • Very energy-efficient
  • One-touch design is easy to operate
  • 1-year warranty and lifetime customer service


  • Slightly bulky design
  • Tank needs to be emptied frequently


Best Small Dehumidifier for Basements
Dimensions 7.2 x 6.2 x 11 inches
Coverage 195 sq. ft.
Water Tank Capacity 0.125 gallons
Moisture Removal 0.6 pint
Optimal Operating Temperature 59-86 degrees-F

Our penultimate entry is the SEAVON Electric Dehumidifier. This dehumidifier covers up to 195 sq. ft. and works great for any small spaces, including basements, closets, RVs, and more. It is extremely quiet and has a simple switch with an on/off interface.

The SEAVON also has an auto-shutoff function that turns the dehumidifier when the tank is full. It also has an LED indicator on the front to tell you when the reservoir has reached capacity. The tank is effortless to remove, empty, and replace.

The SEAVON also is very energy efficient and environmentally friendly. It costs literally pennies to run and is easy to take apart and clean. Reviewers state that it is perfect for removing mildew and great for travel in hotel rooms. It is ideal for small rooms, and the tank does not leak. It’s a handy unit to have around for multiple purposes.

The SEAVON’s main benefits are its portability and versatility. It can be placed virtually anywhere in your room and is small enough to take on trips.  The tank is easy to remove, although you might have to deal with some leakage occasionally. It is quiet, efficient, and very convenient, which is why we rate it as the best small dehumidifier for basements.


  • Easy to drain tank
  • Auto-shutoff functionality
  • Thermo-electric cooling mechanism is very quiet
  • Extremely space-conscious


  • Relatively small tank capacity
  • Some leakage

7. Eva Dry

Best Cheap Small Dehumidifier
Dimensions 9 x 8.25 x 2.88 inches
Coverage 49 sq. ft.
Water Tank Capacity 0.04 gallons
Moisture Removal 0.375 pints
Optimal Operating Temperature Room temperature (~70 degree-F)

Last but not least on our list is the Eva Dry, our pick for the best cheap small humidifier. This humidifier also uses silica beads to absorb moisture rather than a removable water tank. The beads turn from orange to green when they are at full capacity, and then they can be dried and reused.

As such, the Eva Dry is leak-proof and won’t drip moisture. The silica beads are also non-toxic so they are safe for use in a home with children. The Eva Dry is completely cordless and runs on batteries. It can last for 4 weeks before needing to be recharged.

Reviewers describe the Eva Dry as the only true ECO way to dry out moisture. It is very eco-friendly and energy-efficient, not to mention convenient! You can place it in a regular home outlet to recharge and dry out the silica gel beads. You do have to be careful, though, as leaving it plugged in for too long can cause it to overheat and potentially damage the internal components.

Otherwise, it is a great portable dehumidifier and can be used virtually anywhere, including bedrooms, closets, fridges, cabinets, and more.


  • Cordless design
  • Unique silica beads absorb moisture
  • Very energy efficient
  • Extremely generous 5-year warranty


  • Can run out of batteries if you do not maintain it
  • Can overheat if left plugged in for too long

Tips for Sizing Dehumidifiers for Small Rooms

Dehumidifiers are sized in “pints,” referring to how much volume of water they can extract from the air in a given time (usually a day). For smaller rooms between 200-900 sq. ft., you should look for a dehumidifier that can move between 20-60 pints per day.

Your dehumidifier should also be able to keep relative humidity levels between the recommended 50%-60%.

How to Set Up and Use Compact Dehumidifiers

Compact dehumidifiers are great because they are so simple to use. All you have to do is set it up out of the way in a corner or somewhere similar, turn it on, and remove the water tank when it has reached full capacity.

Most small dehumidifiers have a manual reservoir tank though some may have a ducted drainage canal as well. Also, you should be able to modify performance levels using an onboard control pad.

People Also Ask (FAQ)

What does continuous drain option mean?

Continuous drain means that the machine is constantly draining the water reservoir instead of waiting until it fills up.

How much do small humidifiers cost on average?

A decent small humidifier can cost anywhere between $100-$400. However, there are budget options available for as low as $30.

What are the main differences between cheaper vs. more expensive models?

More expensive models tend to be able to work under a wider range of temperature conditions or are more powerful than cheaper versions that may be more suitable for closets, etc.

What are the average running costs of a dehumidifier for small spaces?

The average compact dehumidifier costs only about $25 per year. More powerful models are more expensive to run.

Are dehumidifiers safe to use in baby nursery rooms?

Yes. In fact, a dehumidifier can protect your baby from dust, mildew, and other unwanted debris.

Aside from using it in bedrooms, what are the main uses for a small room dehumidifier?

Compact dehumidifiers can be used in cars, RVs, closets, tents, offices, basements, and more.

Where is a good place to buy these units?

We recommend shopping at online retailers such as Amazon or Sylvane for fast shipping and great deals. You can also buy a dehumidifier in any home goods store such as Wal-Mart, Lowe’s, or Home Depot.


The Pro Breeze won our top spot due to its performance, relatively large tank capacity, portability, and compact profile. It works great in virtually any small room and can keep moisture levels low enough that mold cannot take root and grow.

Josh M