Top 6 Small Dehumidifiers in 2021

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Humidity and excess moisture don’t care about the décor in your living room, the type of flooring you have, or how large a room is. When moisture gets out of hand, you also experience severe problems that go far beyond musty clothes.

Dehumidifiers can solve that problem, but finding one that can fit into a small space or cramped area can be easier said than done. There are hundreds of companies claiming to have the best small dehumidifier, but we quickly found out most of these systems don’t live up to the hype.

The Best Small Dehumidifier Reviews

Small dehumidifiers are abundant, and in the course of our research, we found out some interesting facts about these miniature machines. Some were incredibly efficient for their size, while others had a variety of issues related to quality control, which kept them off our list. After picking through hundreds of models, our experts came up with six small dehumidifiers that perform as advertised and stand out from the rest of the pack.

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Ivation IVADDH06

Ivation IVADDH06

  • Capacity: 13 pints
  • Noise Rating: Not Specified
  • Coverage: 270 sq. ft.
  • Bucket Size: 3.8 pints
  • Warranty: 1-year
Whynter RPD-321EW

Whynter RPD-321EW

  • Capacity: 20 pints
  • Noise Rating: 53 dB
  • Coverage: 400 sq. ft.
  • Bucket Size: 7 pints
  • Warranty: 1-year
Pro Breeze PB-02-US

Pro Breeze PB-02-US

  • Capacity: 9 ounces
  • Noise Rating: 33 dB
  • Coverage: 150 sq. ft.
  • Bucket Size: 18 ounces
  • Warranty: 1-year
Ivation IVA20PDEHU

Ivation IVA20PDEHU

  • Capacity: 11 pints
  • Noise Rating: 45 dB
  • Coverage: 215 sq. ft.
  • Bucket Size: 3.5 pints
  • Warranty: 1-year
ALROCKET Small Dehumidifier


  • Capacity: 16 ounces
  • Noise Rating: 39 dB
  • Coverage: 260 sq. ft.
  • Bucket Size: 33 ounces
  • Warranty: 1-year
Eva-Dry Mini

Eva-Dry Mini

  • Capacity: 6 ounces
  • Noise Rating: N/A
  • Coverage: 500 cu. ft.
  • Bucket Size: N/A
  • Warranty: 5 years

#1 Ivation Small Area Desiccant Dehumidifier

Ivation IVADDH06

Dehumidifiers that use refrigerant are an excellent option for humid locales, but not always the best choice for climates with cold weather or wild temperature swings. That’s where a desiccant dehumidifier comes in handy, and the Ivation IVADDH06 is the best small desiccant dehumidifier available at this time.

This dehumidifier is one of the more interesting systems on our list from a design standpoint. It’s easy on the eyes and has a standard control panel on top with a small 3.8-pint water bucket that slides out from the bottom. The display is large and easy to read, although the real draw is the interesting addition next to that display.

The Ivation IVADDH06 has an adjustable vent that blows out warm, dry air. It can be used to actually dry garments or help regulate the temperature in a room. The temperature range is listed at 33°F to 104°F, and it can remove up to 13 pints per day by the new standards. It’s also quiet thanks to the desiccant rotor and has a sleep mode that dims the display and drops the speed down to a more peaceful level.

Ivation has produced one of the more advanced portable desiccant systems with the IVADDH06, so you can expect a full array of features on this small dehumidifier. It has auto-stop and restart, a 12-hour timer, continuous drainage, and two speeds. The humidistat is adjustable in 5% increments from 35 to 85%, but you can opt to use continuous mode as well.

Desiccant dehumidifiers aren’t for everyone, especially if you need a high capacity system. They are perfect for smaller areas, however, and the Ivations IVADDH06 is one of the best. The only drawback is the price compared to larger dehumidifiers, although that’s a con with any full-sized desiccant-based machine.

  • Pros: Efficient and quiet dehumidifier with a wide operating range. Adjustable drying vent, sleep mode, and continuous drainage option.
  • Cons:  Nothing significant.

#2 Whynter Portable Dehumidifier RPD-321EW

Whynter RPD-321EW

Whynter makes a number of portable products that help you stay comfortable indoors or outside. They have around a dozen dehumidifiers on the market at any given time, but none are as efficient in a small space as the RPD-321EW portable dehumidifier.

This portable dehumidifier has two speeds with an airflow rating of 144 CFM on high. That’s impressive given its size, and it can handle a 400 square foot room as well. It has the largest coverage area of any system on our list, although it’s not the quietest model at 53 dB. The dehumidifier has a 7-pint bucket, and by current standards, the Whynter RPD-321EW can remove up to 20 pints of moisture per day.

While the design of this system may seem a little dated, it’s incredibly easy to use. A small unobtrusive control panel gives you access to the speeds and notifications for the bucket and filter. This particular system comes with a 2-in-1 washable pre-filter that’s coated in silver. Other features to note include auto-restart, defrost, and a comfort mode.

This dehumidifier isn’t the smallest as it’s close to 20” tall, but it’s the best small dehumidifier when you need a compressor-based system that has features found on larger models. That includes continuous drainage and two fan speeds. There is a 35-pint variant of the Whynter RPD-321EW if you require something slightly larger, and both versions are backed by a 1-year warranty.

  • Pros: Powerful 20 PPD dehumidifier with excellent coverage. Energy Star certified with dual speeds and a silver-coated filter.
  • Cons: A bit louder than other models.

#3 Pro Breeze Electric Mini Dehumidifier

Pro Breeze PB-02-US

When looking for the best small dehumidifier, there’s a fine line between “mini” and small. This system from Pro Breeze is definitely in the miniature class, but the PB-02-US is a unique option if you live in a humid area and are in need of a desktop-sized dehumidifier.

Measuring 8.6”H x 6”W x 5”D with a weight of 3.2 pounds, the Pro Breeze PB-02-US is far and away the smallest dehumidifier on our list. It is rated for an area of up to 150 square feet, which is suitable for areas like bedrooms and bathrooms. The water tank is listed at 16 ounces, and the system itself can capture up to 9 ounces of water each day.

You won’t find many features on this dehumidifier, although it does have auto shut-off and a notification light for the bucket. As it’s a Peltier system, this machine is quiet with a decibel level of only 33 dB. While it doesn’t have a filter, homeowners found this small dehumidifier very easy to clean and maintain.

There’s a lot to like about this simple system, including the size, price tag, and the fact it’s extremely quiet. On the downside, it’s not very powerful, and there are better options for cold weather or the fall, considering the operating range is limited at 59°F to 95°F. The Pro Breeze PB-02-US comes with a standard 1-year guarantee.

  • Pros: Capable but quiet Peltier -based system with a raging of 33 dB. Full bucket indicator and an 18-ounce water tank.
  • Cons:  Limited operating range.

#4 Ivation Small Compressor Dehumidifier IVA20PDEHU

Ivation IVA20PDEHU

Ivation’s desiccant dehumidifier is impressive, but the company also has around a dozen compressor-based units in a variety of shapes and sizes. Our favorite for small rooms is the IVA20PDEHU, a system that can remove humidity while purifying the air in your home.

While the IVA20PDEHU is extremely efficient as a dehumidifier, that’s not all it can do. This system has a built-in ionizer that purifies the air, but it also has an integrated UV light. That’s a bonus for homeowners with allergies or pets, and it can be run separately from the dehumidifier as well. In either mode, the IVA20PDEHU is best suited for rooms up to 215 square feet.

As for the dehumidifier, it’s rated at 11 pints per day and has two washable filters – one in the back and one on the side. The reservoir holds 3.5 pints, although a drain port allows you to use this unit continuously. Other features on this small dehumidifier include auto defrost, auto shut-off, a 24-hour timer, and a large touch-based display.

This machine performs as advertised and is an excellent choice for smaller rooms too tough for a desiccant dehumidifier to handle. Homeowners were pleased with the ionizing and UV features, although a few felt it could have been quieter for its size. This dehumidifier comes with a standard 1-year guarantee from Ivation.

  • Pros: Stylish design with excellent coverage. Dual washable mesh filters, a built-in UV light, and ionizer.
  • Cons:  Nothing significant.

#5 ALROCKET Small Dehumidifier

ALROCKET Small Dehumidifier

Miniature desktop dehumidifiers are a dime a dozen and usually produced by lesser-known brands, which makes finding reliable models tough. ALROCKET may not be a company most homeowners are familiar with, but they have put out a highly-rated system with this small 35-ounce dehumidifier.

This dehumidifier is one of the sleeker machines we’ve seen, and it won’t take up much space as it’s only 6” wide and 9” tall. The compact design makes it perfect for a nightstand, especially in a bedroom. With a decibel rating of 39 dB, it won’t keep you up at night. We also like the simple controls on this unit and its interesting notification light system.

When the water in the 33-ounce tank hits a certain level, the dehumidifier beeps, and a RED LED light will flicker in the tank. You can also set the light to a specific color for a bit of ambiance. This system is rated to remove up to 15.2 ounces of water per day under the old standards, and geared towards rooms up to 260 square feet.

ALROCKET’s miniature dehumidifier definitely won’t break the bank, and while it’s a little light on features, it will shut itself off automatically before the bucket overflows. The LED lighting effect is useful, not gimmicky, and homeowners felt this small dehumidifier lived up to the hype when it comes to noise levels as well.

  • Pros: Quiet, small, and portable with a weight under 3 pounds. Easy to use with an LED that can double as a nightlight.
  • Cons: Limited range and features.

#6 Eva Dry Wireless Mini Dehumidifier

Eva-Dry Mini

Every dehumidifier on our list is smaller than a traditional model, but none are as tiny as this desiccant dehumidifier from Eva Dry. While it can’t measure up to other models when it comes to capacity, it’s the best option when you’re dealing with small areas like closets or cabinets.

You won’t find a compressor or any tech unique tech inside this system as it’s designed to work with silica beads. This ensures silent operation, and it’s small enough to fit anywhere at only 5.5” wide and 2.5” thick. You can mount the Eva Dry Mini Dehumidifier or hang it thanks to the included hook on the back.

The price of this system may lead you to believe it’s disposable, but that isn’t the case. A small window on the front of this unit changes color when the beads inside have soaked up as much moisture as they can hold. How long that is depends on the conditions in the area, but most consumers need to replenish their systems every couple of months. That’s simple as well, considering you only need to plug it into a wall socket for 12 to 14 hours.

Saying this system is renewable is an understatement considering the silica beads can last for up to 10 years. That makes the Eva Dry E-333 a no-brainer if you have an area under 500 cubic feet that experience excess moisture. The affordable price point is a bonus as well, along with a 5-year guarantee from Eva Dry.

Aside from a few quality control issues out of the box, there's no reason not to pick up this mini dehumidifier if you need to remove moisture in a small area up to 500 cubic feet. The Eva-dry 500 is small, effective, and comes with a 5-year guarantee.

Pros: Rechargeable mini dehumidifier that’s good for up to 10 years. Set and forget simplicity and a 5-year guarantee.

Cons: None

How to find the Best Small Dehumidifier

Excess humidity can cause a variety of problems in your home from moldy and musty smells to water damage. A good dehumidifier can clear up those issues quickly, but finding the best model is difficult even if you’re just looking to upgrade.

The goal of this guide is to help you figure out the type of system that best suits your home. To do that, we’re going to touch on several key areas like capacity, features, and operating ranges.

Refrigerant vs. Desiccant Dehumidifiers 

If you’ve never purchased a dehumidifier, you may be surprised to learn there is more than one type. The most popular style is a system that uses refrigerant and has a compressor. As warm air passes across a surface cooled by refrigerant, moisture is pulled from the air and collected in the machine. Theses systems come in a variety of styles and sizes, including whole-house dehumidifiers rated at well over 100 pints per day.

A thermo-electric or Peltier dehumidifier is another option and quieter than systems with a compressor. These dehumidifiers use current, a heat sink, and a fan to draw moisture from a room. They are more affordable than a refrigerant-based dehumidifier and come in smaller sizes, including desktop models.

The last type of mainstream dehumidifier is called a desiccant dehumidifier. If you’ve ever pulled a silica pack from a product, you’ll understand how these machines work as a desiccant inside the system collects water like a sponge. These units are also quieter than a dehumidifier with a compressor and put off more heat, but are limited when it comes to capacity.

Simply put, if you live in a warmer area or need a large system with a pump, pick up a unit with a compressor and refrigerant. If size, the weather, and capacity aren’t issues, consider a desiccant or Peltier dehumidifier.

Dehumidifier Capacity

When you have an idea of the type of dehumidifier you are interested in, its’ time to think about capacity ratings. This refers to how many pints of water a machine can remove from the air each day, and directly affects the size of a system and its price.

Unfortunately, the way efficiency in these machines is measured was recently changed, which you can read more about here. That means you’ll find a mix of models in over a dozen sizes in the portable class alone. The table below will allow you to quickly compare the old sizing standards against the new.



30 PPD

20 PPD

40 PPD

25 PPD

50 PPD

30 PPD

55 PPD

30 - 35 PPD

60 PPD

35 PPD

70 PPD

40 – 45 PPD

90 PPD

55 PPD

According to the new standards, machines previously rated at 50 pints per day are now rated at 30 pints per day. The important thing to remember is that not all companies have updated their ratings to reflect the change. If you need help finding the right size dehumidifier for a room or area in your home, check out our dehumidifier sizing guide.

Water Bucket or Continuous Drainage?

When shopping for a small dehumidifier, a few features found on larger machines don’t make the cut. We’ll touch on those soon enough, but drainage is the first feature you will want to consider. You won’t find a pump on any small dehumidifier under 20 pints, although continuous drainage is an option on several machines.

A dehumidifier with a drain port allows you to connect a hose and run it to a drain so you can run the machine continuously. Alternatively, every small dehumidifier will have a reservoir bucket where water is collected as well. The smaller the bucket, the more you’ll need to empty it, so pay attention to the extraction level in comparison to the bucket size.

Most dehumidifiers give you the choice of using either drainage method, and small buckets are easy to deal with. Placement is the biggest issue if you want to use continuous drainage as you’ll need gravity to do the work in place of a pump.

Operating Range

Normally the operating range isn’t something to be too concerned about if you’re only considering a dehumidifier with a compressor. Most manufacturers stick to a standard range with those systems, but that isn’t the case with a thermo-electric or desiccant dehumidifier.

The “standard” operating range for most dehumidifiers with a compressor is around 41° to 94°F. That’s suitable for most consumers, but not ideal for some climates or areas in your home, which can experience extreme temperature swings. Desiccant dehumidifiers are better suited in that case, and we’ve even seen systems that can dip down well below 32°F without a defrosting system.

Dehumidifier Features

When you purchase a small dehumidifier, there are some limitations involved. Capacity is an obvious one, but there are also several features you won’t find on systems in this class. Before we get to what’s missing, we’re going to talk about a few standard features.

Timers and filters are almost standard with any electric dehumidifier, regardless of whether it has a compressor or desiccant rotor inside. That’s true with smaller systems as well, although it’s challenging to find systems with fully adjustable 24-hour timers. Auto-restart and defrosting are also common with compressor-based dehumidifiers along with drain ports.

Drain ports are hit or miss once you reach a certain capacity, however, especially on desiccant dehumidifiers. Both types of systems can have multiple speeds and modes, but the options are limited compared to larger models. Wi-Fi is practically unheard of with dehumidifiers under 20 pints per day, and extra filtration like an ionizer or UV filter are rare as well.

Warranties and Replacement Parts

As you can see by the choices on our list, even the best small dehumidifier comes with a short warranty. The standard for this range is 1-year, which is also the average for many larger systems as well. Usually, a good warranty comes down to the manufacturer, not the price of the machine.

Quality control is even more important than usual with small dehumidifiers because of the warranty, but that’s not the only reason. Replacement parts are difficult to find with dehumidifiers of this size and almost impossible with desktop models and minis.


Q: How long will it take for my dehumidifier to clear up moisture in a room?

A: It depends if the size of the systems and the conditions if the affected area. During initial use, it may take longer for the system to adjust to the room and operate properly.

Q: Is a Desiccant dehumidifier better than a compressor-based system?

A: For operation in cold weather climates, they are an excellent option, but it all depends on your needs and how large of a system you require for your home.

Q: Are dehumidifiers noisy?

A: On average, you can expect a dehumidifier to come at around 35 to 60 dB on the decibel rating scale. That’s about as loud as a general conversation but considerably quieter than a vacuum cleaner or lawnmower.

Q: How long will my dehumidifier last?

A: Most portable dehumidifiers have warranties ranging from 1 – 3 years. When properly maintained, it’s not uncommon to see dehumidifiers 5 years or more, although you’ll get a better guarantee from a commercial-grade system.

Q: What is relative humidity?

A: This measurement refers to how much moisture is in the air, so the higher the rating, the bigger the humidity problem you have in your home.

Other dehumidifier options you may also like:

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