Best Dehumidifiers Available [2021]

If you’ve ever used the words “humid” or “sticky” to describe the air in your home, you may need a home dehumidifier.

And is that the high levels of humidity in a house, office, or garage can invite the most undesirable guests to appear in some corners of the home, such as mold (difficult to get rid of and unpleasant to be around). So to prevent these invaders from appearing in the first place, a good dehumidifier is an essential device in any space with high levels of humidity.

Dehumidifiers often use a compressor or desiccant rotor to condense the moisture from the air that is introduced into the machine. Compressor dehumidifiers are the most common, but they may not work in temperatures below 5 degrees, and you will have to keep an eye on the coil to make sure it doesn’t freeze. Both types of dehumidifiers are rated based on how much moisture they can extract from the air each day. Small, portable dehumidifiers remove around 380 to 415 milliliters of water per day, while larger units can remove 20 to 33 liters per day. Even larger models (like whole-house central dehumidifiers) can draw up to 45 liters or more per day.

To choose an efficient and effective dehumidifier that suits your home, you have to take into account the size of the space and the level of humidity where the anti-humidity device will work. Below we leave you a ranking of the best dehumidifiers for different spaces and needs.

What is the best dehumidifier?

The Inventor dehumidifier is our top choice. The certified energy-efficient unit is reliable, powerful, quiet, and can be configured for continuous drainage.

The best dehumidifiers

Inventor Fresh 12L, Portable Dehumidifier with R290 Refrigerant - Dehumidification ...

Inventor Fresh 12L, Portable Dehumidifier with R290 Refrigerant – Dehumidification …

  • Powerful compressor dehumidifier with extraction capacity of up to 12 liters of water per day. Modern and elegant design with wheels …
  • New environmentally friendly refrigerant R290 that has a very low global warming effect and zero ozone depletion potential. In addition, it highlights …
  • Silent mode for low noise level, continuous mode for immediate results, timer from 0.5 to 24 hours to manually adjust your …

The best dehumidifier on the market: Inventor Fresh 12L

The Inventor Fresh is the best overall dehumidifier you can buy today. It’s one of only two devices on our list with an active pump, which means you can send water into an overhead sink or out a window if you don’t have a floor drain and don’t want to go through the hassle of removing and emptying the Cube.

What has made the Inventor superior to the other devices we have considered is its design. It’s sleek overall and has an attractive digital display, making the indicator lights and settings easy to see.

It has hooks to wrap the power cord when the machine is placed right next to a plug or when storage is desired, and the filter is easily accessible for removal and cleaning. And while the device has wheels to make it easy to move, it also has a heavy-duty top handle for transporting it up stairs.

One of the few areas where Inventor Fresh falls short is in the initial pump setup. Both testers and device owners reported that removing the plug from the pump socket is difficult, and that in some cases the plug simply broke completely.

This glitch is not unique to Inventor Fresh, but it is something to prepare for if you buy this model for the convenience of having a pump.

While the pump option comes at a premium, it is a nice feature to have. Of course, you can also go for continuous drain (if you have a floor drain) or simply flush the bucket manually if you prefer.

Keep in mind, however, that the inventor’s tank capacity is 12 liters per day. So if you don’t live in a really humid space and you run the machine continuously, that volume will be more than enough.

UGHEY Portable Electric Dehumidifier, 1000ml Mini Dehumidifier, Silent, 7 ...

UGHEY Portable Electric Dehumidifier, 1000ml Mini Dehumidifier, Silent, 7 …

  • Portable and minimalist design : The 7-color LED light set with this product is matched with a water tank with a translucent design, …
  • More efficient purifier : Adopts semiconductor technology, quickly sucks moisture from the air through the fan, the …
  • Quiet Operation : Dehumidifiers based on Peltier thermoelectric technology can achieve quiet operation and …

Best quality price dehumidifier: portable electric Douhe 1000 ml

For effective humidity control, be sure to check out this popular and easy-to-use dehumidifier from Douhe. With 450ml per day moisture removal capacity available, you can find a model to suit the needs of your space. A unit that is certified as energy efficient for low consumption has the ability to run continuously if properly drained is available, saving you the trouble of manually emptying the tank. However, if you have to empty the tank each time, an auto-shutdown system prevents an overflow.

One of the most popular features of this dehumidifier is its simple electronic control. With a quick push of the button, you can adjust target humidity levels, activate a 24-hour timer function, or adjust fan speed. The display also informs you when the bucket is full or when it is time to clean the removable and washable filter. A digital humidity reading makes it easy to monitor room conditions. Reviewers also find that this Douhe dehumidifier runs quietly and smoothly in the background. Both units are compact with a retractable handle and smooth-moving casters that make it easy to place this dehumidifier in any room you need, including the living room, bedroom, bathroom or basement.

Aidodo Portable Electric Dehumidifier 900ml Mini Silent Air Dehumidifiers ...

Aidodo Portable Electric Dehumidifier 900ml Mini Silent Air Dehumidifiers …

  • Ultra-efficient: applicable area 5-20m2. The dehumidification efficiency of 300ml / day (30 ° C, 80% RH) is better than the same level of …
  • ➤ Ultra Quiet: The noise output of all the thermoelectric dehumidifiers we tested was between 45-53dB. Kasimir uses the …
  • ➤ Safe and easy: When the water tank is full, the red light indicator turns on and off automatically. When you sleep, you don’t have …

Cheap dehumidifier: Aidodo Mini silent 900 ml

This type of dehumidifier uses a desiccant rotor to remove moisture from the air through chemical attraction, rather than condensation. As a result, these models can operate over a wide range of temperatures with less concern about freezing. The 0.9 liter Aidodo model is designed to operate up to temperatures of 40 degrees Celsius. And, according to reviewers, in both cold and humid climates, the dehumidifier works as expected no matter the temperature. Since it has no compressor, users also report that it is very quiet during operation.

Like others on our list, the Aidodo dehumidifier can be configured to continuously drain through an included hose and fitting, or you can manually empty the 0.9 liter reservoir as it fills. A washable filter makes it easy to keep the unit clean and running, and it’s also equipped with an LCD interface where you can set a timer, adjust the fan, and view things like relative humidity, ambient temperature, and bin alerts.

With the ability to remove up to 300 milliliters of moisture per day, this dehumidifier is efficient enough to handle humidity in rooms up to 25 square meters.

Hengda 16L Compact and Portable Dehumidifier Air Purifier Dehumidifier Low Consumption ...

Hengda 16L Compact and Portable Dehumidifier Air Purifier Dehumidifier Low Consumption …

  • 【Eliminate moisture and mold】 With a dehumidification capacity of 16 L / day, the dehumidifier can also reduce mold, …
  • 【Energy efficient】 This dehumidification performance is in energy efficiency class A. The device uses the …
  • 【Low power consumption and quiet operation】 The unique air inlet design of the dehumidifier can effectively reduce the …

Best home dehumidifier: Hengda 16-liter compact

A suitable bedroom dehumidifier has to be both quiet and effective. This version of Hengda achieves both, thanks to its near-silent operation of 36 decibels and its capacity of 16 liters per day. Many of the smaller units on the market have a more limited capacity and are only effective in rooms up to 14 square meters, but the Hengda is ideal for master bedrooms and even basements.

In addition to being very quiet and offering adjustable fan speeds to keep noise to a minimum while sleeping, this humidifier also offers a timer function and two drain options. This means you can set the unit to start dehumidifying your room a few hours before you go to bed, or you can set it to turn off after you’ve finished your morning routine and left the house for the day. As for drainage, you can use the included 1 meter drain tube to automatically drain it through the floor drain or you can manually drain it once it has reached its 5 liter capacity.

Dehumidifiers such as Hengda can also be beneficial for allergy sufferers, as they prevent the growth of mold and dust mites. Sleep well (and undisturbed) with this device at your bedside!

Pro Breeze Dehumidifier 12L / day with Digital Display of Humidity, Sleep Mode, Drain ...

Pro Breeze Dehumidifier 12L / day with Digital Display of Humidity, Sleep Mode, Drain …

  • 12 LITERS PER DAY: Eliminates up to 12 liters of water per day with low energy consumption. Ideal for damp, mold and humidity in homes, basements and …
  • LARGE WATER TANK: The 1.8L water tank closes automatically when full, with a drain hose still included for …
  • DIGITAL LED DISPLAY: The digital LED display shows the current humidity level in the room and allows you to control 3 modes of …

Electric dehumidifier: Pro Breeze 12L with digital display and timer

With oversized coverage for spaces up to 418 square meters, this large dehumidifier from Pro Breeze is well equipped to monitor and manage humidity levels in areas with temperature fluctuations, such as basements. Thanks to the turbo fan setting, you can increase circulation up to 188 CFM (cubic feet per minute), giving the unit an advantage in particularly humid areas.

This Pro Breeze unit is rated to remove 12 liters of moisture a day from the air, with reviewers seeing how they like its multiple operating modes. Continuous mode is a good bet for really humid areas where humidity needs to be controlled 24 hours a day, while comfort mode allows the unit to adjust the target humidity based on the ambient temperature of the space. There is also a manual mode that allows you to select your target humidity level and cycles the unit on and off until these conditions are met.

In the case of a basement dehumidifier, you will likely want to choose continuous drain operation. With a proper drain nearby and the addition of a threaded hose, you can set this dehumidifier to drain itself, saving you from having to empty the 1.8-liter water tank, which is somewhat limited.

LUKO 12L Silent Portable Low Consumption Dehumidifier 2L Tank with Drain Control ...

LUKO 12L Silent Portable Low Consumption Dehumidifier 2L Tank with Drain Control …

  • √ Super Silent System: LUKO D001 dehumidifier uses high-performance compressor dehumidification technology and super …
  • √ 4 Modes + 3 Lights + 2 Speeds: D001 dehumidifier can freely switch between Sunny Day, Rainy Day, Continuous / Dry Mode and …
  • √ Humidity Control and Security System: allows you to control the amount of humidity in your room from 20% to 95%. Equipped with a …

A ++ dehumidifier: Luko 12L energy efficient with LED display

A dehumidifier that is set to drain continuously is a simple and hassle-free way to manage humidity levels. However, if gravity is not on your side and you don’t have a drain lower than your dehumidifier, setting up the unit can be difficult. This is usually true if your only drain option is a sink or laundry tub, or if a nearby drain is level with the dehumidifier. Therefore, a dehumidifier with a built-in pump, like this version with a 2-liter tank from Luko, is an easy solution that removes up to 12 L of humidity in the air per day.

The unit’s internal water pump can pump water up to 5 meters vertical and an included drain hose makes the installation process easy. In addition, an LCD control panel makes it easy to set the target humidity level, start the unit in continuous operation mode, or turn the pump on and off. Reviewers frequently comment on how quiet this dehumidifier runs, and the choice of three different fan speeds makes it easy to adjust the unit’s noise level.

Pro Breeze 20L Dehumidifier, Digital Display, Continuous Drain, Portable, with 4 ...

Pro Breeze 20L Dehumidifier, Digital Display, Continuous Drain, Portable, with 4 …

  • High efficiency: Compression dehumidifier, can absorb up to 20 liters of water per day and is ideal for removing vapors, moisture and mold in …
  • Set the humidity you want: The integrated humidity sensor will allow you to set the humidity level you want in the room. Once…
  • Digital display: It has a digital LED display that shows the humidity in the room. Having an easy-to-use control panel allows you …

Powerful dehumidifier: Pro Breeze 20L with digital display, timer and clothes dryer

If you want to maintain the proper humidity level in your bathroom, you can purchase a dehumidifier that removes excess moisture from the air and also purifies the air. For this, we recommend the Pro Breeze Dehumidifier, which includes a HEPA filter that removes 99.97 percent of microparticles from the air.

This dehumidifier can absorb up to 20 liters of water from the air each day, and operates in a super quiet range of 35 to 42 decibels. It’s perfect for spaces up to 18 square meters and the product includes an LED indicator that tells you when it’s time to empty the 5.5-liter water tank. Critics say it’s the perfect dehumidifier for RVs, laundries, bathrooms, or bedrooms – any small space where you want to reduce humidity, prevent mold, and clean the air in one go.


Pro Breeze Mini Compact, Silent and Portable Air Dehumidifier, 500 ml, for Molds ...

Pro Breeze Mini Compact, Silent and Portable Air Dehumidifier, 500 ml, for Molds …

  • REMOVE MOISTURE: Perfect for removing steam, mold, and moisture from your home, kitchen, bathroom, dorm, caravan, garage, or basement
  • SMALL AND COMPACT: Light, portable and compact, capable of removing 250 ml of moisture per day, with a capacity of up to 500 ml. With a weight of 1 …
  • ULTRA SILENT & EFFICIENT: Peltier Thermoelectric Technology (without the need for a compressor) allows quiet and environmentally friendly operation …

Small dehumidifier: Pro Breeze 500 ml compact and portable

Damage caused by too high a humidity level in your home can be costly, not to mention how uncomfortable that “sticky” feeling can be on your hgoar skin and furniture. Fortunately, even a cheap, basic dehumidifier can go a long way in reducing the chance of mold. This low-energy option from Pro Breeze removes up to 250 ml of water per day and has a 500 milliliter tank that will only need to be emptied every few days. Thanks to an LED indicator, you won’t have to guess when to empty it either.

The small but efficient Pro Breeze dehumidifier uses thermoelectric technology to condense moisture from the air, and critics say it runs quietly. Described as “small but powerful,” according to one user, this dehumidifier is ideal for spaces up to 23 square meters, including home offices, garages, and even RVs and boats. If you need coverage in multiple rooms, you may only need a few.

De'Longhi Tasciugo AriaDry Light DNS65 Ionizing Dehumidifier, 2.8 L Reservoir, Capacity ...

De’Longhi Tasciugo AriaDry Light DNS65 Ionizing Dehumidifier, 2.8 L Reservoir, Capacity …

  • DEHUMIDIFICATION CAPACITY: it can extract up to 6 L per day, even at a temperature of 32º and 80% humidity
  • LCD DISPLAY: on the top it has an illuminated control panel with simple buttons that are easy to operate
  • SILENT: this dehumidifier is silent and therefore ideal for any room in the house, you can even use it while you sleep

Ionizing dehumidifier: De’Longhi AriaDry for home

The De’Longhi AriaDry 16 liter dehumidifying per day is a great choice for laundries, apartments and other small spaces. It is portable and its four wheels make it easy to move from room to room if necessary.

This machine performed well in actual dewatering tests, reaching humidity levels that were 28% below where the tests began.) It also did well on humidistat accuracy and cold room performance.

The De’Longhi AriaDry also has user-friendly design features similar to its older cousin, the AriaDry, including an easy-access filter, sturdy handle, and cable storage hooks.

The De’Longhi AriaDry is certified as energy efficient with an energy efficiency of A +. Of course, in tests we found that this dehumidifier is a little louder than other 16L machines, probably due to its superior performance.

User reviews posted on Amazon sites are overwhelmingly positive.

Orbegozo DH 1036 Dehumidifier, 180 W, 2.1 liters, 40 Decibels, plastic, Blue / White

Orbegozo DH 1036 Dehumidifier, 180 W, 2.1 liters, 40 Decibels, plastic, Blue / White

  • Orbegozo dehumidifier with daily capacity for up to 10 liters of dehumidification in conditions with 80% relative humidity (RH) and a …
  • 2.1 liter storage tank
  • Washable dust filter and automatic defrosting system

10 liter dehumidifier: Orbegozo DH domestic for bedrooms and bathrooms

Most dehumidifiers are quite large and expensive, but if your needs are more modest, you may like the small Orbegozo DH electric dehumidifier. This unit can remove up to 10 liters of moisture from the air each day, and it receives rave reviews from users who love its performance and price.

Due to its size (it measures 25x32x43 cm), the Orbegozo DH is ideal for laundries, bathrooms, closets, offices, RVs and boats. It can sit on a counter or shelf to save space, and the noise from the unit’s small fan is negligible. At its low price, the Orbegozo doesn’t have many extra features, but it does have a simple on / off button, a full tank indicator, and an automatic shut-off.

Although the tank in this unit only holds 2.1 liters of water at a time, users like how compact it is and don’t mind emptying the tank frequently.

What dehumidifier to buy? Steps to find out how to choose a good dehumidifier

Whether you live in a hot and humid climate or just have a steamy bathroom, a dehumidifier can balance the humidity levels of the air in your home, making it more comfortable for you and less likely to become a breeding ground for mold, dust mites and bacteria.

Dehumidifiers do their job by condensing moisture from the air and collecting it in a tank of water to reduce the humidity in a room. Many dehumidifiers are refrigerant-based models that work by sucking in air and then passing it over cold coils. This condenses moisture from the air, and drips into the machine’s water tank. The dry air then passes through a heating element before being released from the machine. Alternatively, some dehumidifiers use a chemical desiccant (similar to silica) to condense the moisture and work slightly differently, but still result in lower humidity and drier air.

When buying a dehumidifier, consider how many square meters of space you want to regulate and how many liters per day the unit is expected to remove. Most dehumidifiers on the market are portable units. These compact dehumidifiers work either using a refrigeration system or a chemical absorbency product. There are also whole-house dehumidifiers, but they are much more expensive and require professional installation. A basic portable model can be purchased for € 100 to € 300, but the mini versions for small spaces can be found for less than € 75. Whole-house dehumidifiers can cost $ 1,000 or more.

Some quick tips for choosing a dehumidifier that suits your needs

  • Consider where the dehumidification apparatus will go . Noise is a concern in living spaces. Our measurements from a meter away typically range from about 50 decibels (roughly the sound of a refrigerator running) to 67 decibels (roughly as loud as a box fan turned on full blast) for the dehumidifiers we tested.
  • Large or humid spaces . Typically, the more humid the space, the more capacity you will need in a dehumidifier. The best high-capacity models remove moisture quickly and efficiently in the most difficult situations, such as a particularly humid basement.
  • Small or wet spots . A high-capacity dehumidifier will help dry a smaller space quickly, but a medium-capacity model will likely do so with fewer on-off cycles, according to the manufacturers.
  • Fix existing problems . Even the best dehumidifier might not work effectively if too much outside moisture seeps into your home. Unclogging gutters and making sure downspouts direct rainwater at least five feet from the house can help.

And some functions and features that can be interesting in a good dehumidifier for your home:

  • Easy to use controls . Electronic controls allow you to select a basic humidity level – normal, dry, very dry – and digital controls allow you to program a specific humidity level with percentage numbers.
  • Automatic restart . It is found in most models tested and turns the dehumidifier back on after a power outage, which is useful if a power failure occurs while you are away from home.
  • Timer . A timer can program the unit to turn on and off while you are out of the house. You can also save money by running the dehumidifier at night in areas that have cheaper electricity rates outside of peak hours.
  • Frost control sensor s. All dehumidifiers in our ranges have a sensor that shuts off the dehumidifier if frost forms on the coils – common in colder spaces. This prevents the unit from wasting energy by operating without dehumidifying.
  • Clean filter alert. The filter cleans the air that passes through the dehumidifier, and when it is dirty, the efficiency of your dehumidifier suffers. Most models in our ratings have an indicator light that tells you it’s time to clean the filter.
  • Easy to empty bucket or tank . It should have comfortable handles and a cover that allows it to be taken out and carried when full.
  • Hose connection . All tested dehumidifiers allow you to connect a hose to the dehumidifier. This allows you to divert condensed water directly to a floor drain, so you don’t have to empty the bucket. In a basement without a floor drain, a pump dehumidifier can send the water up through a window, into a sink, or some other high drain.

Types of dehumidifier according to their capacity and size

Dehumidifiers are fairly similar in size, although they vary in the amount of moisture they can remove in 24 hours. Here are the types to consider.

  • Large capacity . These models are claimed to remove 28 to 33 liters per day. They can also handle a wider range of humidity levels with little to no additional noise. They can also work in a lower and quieter environment. For large, humid spaces, buy the highest capacity model you can afford. The additional cost is worth it.
  • Medium capacity . For medium or large spaces that are not so humid, these models usually say that they remove up to 23 liters of humidity per day. While medium capacity dehumidifiers can sometimes cost as much as large models, you will typically pay less.
  • Small capacity. They are said to remove 14 to 16 liters of moisture a day, but can dehumidify small spaces that are more humid than wet.
  • Central, for the whole house. Whole-house dehumidifiers are available as portable units or as add-ons to your central heating and air conditioning system. Manufacturers say they can handle an area of ​​up to 464 square meters. These units are expensive, but the large amount of moisture they remove allows you to run your air conditioner less. (CR does not test this type of dehumidifier.)

What is the best type of dehumidifier for me?

Refrigerant dehumidifiers

Dehumidifiers that rely on refrigerant-cooled coils to condense moisture from the air are called refrigerant dehumidifiers. They are also sometimes called compressor dehumidifiers, or even heat pump dehumidifiers, which may seem like a contradiction at first until one realizes that a second set of heated coils heats the air before pumping it back to the room.

Most of the dehumidifiers on the market are refrigerant-based models that depend on a compressor for their operation. They offer easy, indefinite operation over the life of the coils. A fan draws air into the unit and passes it through the chilled and cooled coils, causing the water to condense and drip into the tank below. The cooled air is then moved through the heated coils to return to a more comfortable temperature before being expelled into the room. Even though these dehumidifiers have a heating coil and give off some heat during operation, they should definitely not be considered a heater.

The biggest drawback to refrigerant dehumidifiers is the potential for frost build-up. Continuous operation can cause the condenser coils to freeze. Look for a model with automatic frost detection that turns off just to allow time for the coil to defrost.

Refrigerant dehumidifiers start at less than $ 100 for compact units, but quickly climb into the $ 200- $ 300 range for more robust units that can dehumidify an entire home.

Desiccant dehumidifiers

Also called an absorbent chemical dehumidifier, these models use a special compound to remove excess moisture from the air. Typically, the desiccant is in a rotor in the center of the dehumidifier where it absorbs moisture from the incoming air.

Adsorbing moisture is different from absorbing it – in this process, the molecules adhere to the desiccant before being drawn back into the hot, humid air inside the dehumidifier. The hot, humid air passes through a condenser which causes the water droplets to condense and the dry air to be released from the unit.

Desiccant dehumidifiers have two advantages. First, these units can operate in a much wider temperature range than refrigerant-based dehumidifiers. Desiccant dehumidifiers can remove moisture from warm, humid air, as well as cooler, almost dry air. Refrigerant-based dehumidifiers only work when the dew point of the air is above a certain level, which means that they will often stop working unless conditions are vaporous enough to warrant their operation.

The second advantage of a desiccant dehumidifier is the fact that there is no frost to worry about. Without a compressor and cooling coil, the unit will never freeze and stop working.

Desiccant humidifiers are very efficient but cost more than their refrigerant-based counterparts. You’ll pay more for a unit that removes fewer liters per day compared to a refrigerant dehumidifier with the same liter per day rating. Most desiccant dehumidifiers start at around $ 175 for a unit that can remove 13-15 liters of moisture per day.

Whole house dehumidifiers

There are also large-scale dehumidifiers capable of removing excess moisture from the air throughout the home. These dehumidifiers work in conjunction with your HVAC system and often need to be professionally installed.

The advantage of a whole house dehumidifier is the fact that the unit is out of sight and usually cannot be heard either, as it is normally installed in an attic or basement. It may also have higher capacity, advanced filtration, or other advantages over portable dehumidifiers.

However, the big disadvantage of these units is the increased price and cost of installation. Typically, a whole house dehumidifier costs around $ 1,000 or more, in addition to the cost of installation.

Liters per day that the dehumidifier can remove

The amount of liquid that a dehumidifier can remove from the air in a 24 hour period is typically measured in liters per day, although you will occasionally see it labeled liters per day as well. Typically, the number of liters per day will be closely related to the size of the space that the unit can dehumidify.

Small capacity dehumidifiers are those that remove about 10 liters per day or less. These mini dehumidifiers are best suited for use in spaces of several hundred square feet or less, such as a bedroom or bathroom.

Medium-sized dehumidifiers are typically capable of removing 14 to 23 liters of moisture from the air per day, making them much more versatile for use in the home. With a greater ability to collect moisture, the midsize models can handle up to 185 square meters of space.

The most robust portable dehumidifiers can draw 30 liters or more of humidity from the air per day. These models are best suited for extra-large spaces of 370 square meters or more.

With the exception of mini dehumidifiers, there is often not much difference in size between models capable of removing more liters per day and units with more limited moisture removal capabilities.

Dehumidifier water tank or water tank

The capacity of your dehumidifier’s water tank will determine how often you should empty the unit. If the tank fills up, a float sensor inside the tank will cause the unit to shut down.

It is important to know that dehumidifiers with a larger capacity to remove more gallons of moisture from the air per day do not have a matching tank size as that would make the unit size huge. Instead, most standard-size dehumidifiers have tanks that only hold about 3 liters of water (some hold slightly more, some hold less). As a result, if you want the unit to continue operating at maximum efficiency, you will have to empty the tank several times a day or set the unit to drain continuously.

Dehumidifier drain

If you don’t want to frequently empty your dehumidifier’s water tank, you can look for a model that includes a built-in drain. The simplest drain system is gravity fed, but some units are equipped with a more powerful drain pump.

If you plan to use your dehumidifier in a basement with a nearby floor drain, a gravity drain may be sufficient. Note that you will usually need to purchase your own drain hose to use with the dehumidifier. Make sure the unit is not located too far from the drain and that there is at least a gentle slope to ensure gravity can do its job of moving the wastewater from the reservoir to the drain.

If you want to get your tank water almost anywhere, then a dehumidifier with a drain pump is a better option. These dehumidifiers are equipped with a pump and included hose that can direct the water up and out of the tank to a sink or any other drainage location within reach of the hose.

A third option to consider is the purchase of a replacement dehumidifier pump that can be attached to your unit and that offers you additional options for draining collected moisture.

Dehumidifier wheels and mobility

If you want to easily move the dehumidifier to another room or drain the water tank, the wheels will make the task easier. Some models are equipped with wheels that allow you to maneuver the dehumidifier to a drain, a tub, or an outdoor location to empty the water tank.

This can be an important consideration if you plan to use the dehumidifier in multiple areas of your home or if you need to manually empty the water tank and don’t want to carry a full (and heavy) container of water.

Electronic dehumidifier controls

Some dehumidifiers are equipped with a digital display and a keyboard that make the machine easier to operate. Rather than turning the knobs or simply turning the unit on, the electronic controls will allow you to set specific programs or signal the unit to stop operating once the desired humidity level is reached (this is called an autohumidistat).

The advantage of a model equipped with electronic controls can be savings in terms of energy and money, along with easy operation.

How does a home dehumidifier work?

A dehumidifier can take that damp feeling out of a home, basement, or even laundry room and avoid those “sticky” situations. Humidity levels above 50 percent can lead to dust mites, mold and mildew, leading to allergies or other health problems.

Using a fan to move air over the cooled coils, a dehumidifier draws moisture out of the air and drips it into a tank.

Cleaning and warranty of the dehumidifier

Keep your dehumidifier in good working order with a regular cleaning and maintenance schedule. Of course you will need to regularly empty the water tank, unless you have a continuous drain system. But to really make sure your dehumidifier is able to perform at its best, you’ll also need to regularly clean and replace your air filters.

Most dehumidifier models have a simple filter to block large particles of dust and debris that enter the unit. These filters are usually washable and a quick rinse with cold water is usually sufficient to clean the filter of accumulated particles, but you may need to use soap and rinse thoroughly if the filter is very dirty. However, it is also important to follow the manufacturer’s recommendations for filter replacement to ensure that this first line of defense against dust, pollen and allergens can do its job.

Another important step in cleaning your dehumidifier is to regularly wash and disinfect the water tank. The warm, humid environment where moisture accumulates can become a safe haven for bacteria or mold to grow. Keep things fresh and clean by regularly emptying the water tank as mentioned above and never leave the water standing for a long period.

Also, it is recommended to give the water tank a soapy cleaning every few weeks to make sure the tank remains hygienic. When you are cleaning the tank, check if your model has a basket filter (a smaller filter inside the water tank). If so, be sure to rinse that smaller filter as well.

The type and length of warranty coverage available on a dehumidifier often varies. Like many small appliances, basic dehumidifiers are typically covered by a one-year warranty against defects in materials or workmanship. This warranty normally covers a replacement unit if your dehumidifier fails within the first year. For some manufacturers, this is where the warranty coverage ends. Others, however, offer a longer limited warranty window in which parts like the compressor and coils of a refrigerant dehumidifier are covered. Read the details of any warranty policy for a dehumidifier you plan to purchase to understand what may and may not be covered.

Most popular dehumidifier brands


A popular manufacturer of large and small appliances, Orbegozo manufactures dehumidifiers of different sizes to keep the humidity in your home under control. Their models are exclusively refrigerant-based dehumidifiers, often with digital controls.


Daitsu is one of the main players in the battle against humidity, and has a wide range of dehumidifiers to choose from. They offer both refrigerant and desiccant models, along with higher capacity units that include a built-in pump. If you’re looking for an abundance of options in a dehumidifier, take a look at Daitsu.


Kayami has a more limited number of refrigerant dehumidifiers on the market, but incorporates the energy efficiency and convenience of digital controls into each of its models. These mid-priced dehumidifiers have replacement parts and filters readily available.


DeLonghi is known for its countertop appliances, along with portable heaters and air conditioners. Their dehumidifiers come in small, medium, and large capacities. Prices range from 270 to 390 euros, and you’ll see them on Amazon, and other HVAC appliance retailers.


Rowenta manufactures both large capacity dehumidifiers and smaller mini machines capable of removing moisture from small spaces such as bathrooms or bedrooms. These dehumidifiers are inexpensive and include a variety of features, including a built-in humidistat on some models.


Low Energy Household Dehumidifiers Frequently Asked Questions

How do dehumidifiers work?

Most dehumidifiers draw in humid air through an inlet with an internal compressor and fan. The air passes through cold coils that draw excess moisture and condense it in the tank. The dry air is then blown back into the room.

What is the optimal humidity setting?

For most, a home between 30 and 50% humidity is ideal, being higher in the summer and lower in the winter. When you get over this, the space can become a breeding ground for mold, dust mites, and other critters.

How do I make sure my dehumidifier works efficiently?

Make sure the airflow is not restricted. Some units have vents on the top, allowing you to be against the wall. Others have vents on the sides, which means they shouldn’t be pushed against walls or furniture.

Clean the air filter regularly. The dehumidifier won’t work as well if it’s dirty.

Be sure to unplug the machine every time you empty or clean the bin.

What type of dehumidifier do I need?

If humidity is a problem throughout your home, an integrated whole-home system may be the way to go. If your humidity problems are more seasonal – and confined to just a few rooms in the house – a portable residential unit is your best bet.
Smaller dehumidifiers tend to be less expensive and easier to move, but can be less efficient when running at a steady rate. It is better to err on the side of caution by purchasing a larger unit than a smaller one and making the unit run less frequently.

What features matter when buying a dehumidifier?

If you are using a large capacity dehumidifier for a particularly wet job, finding a dehumidifier with a hose connection can save you from having to empty the machine manually. If you can’t find one with a hose, look for one that has a pump to send the water up a sink or window.

We have also found having a filter indicator helpful as it reminds you when to clean your air filter. A model with an auto-humidistat is also great because it can feel the humidity in the air and it automatically shuts off once the desired level is reached. If the dehumidifier will be in a cool location, one with a low temperature and / or self-defrost setting is helpful to ensure the unit can function properly in lower temperatures.

How do I choose the right size dehumidifier?

The size of your room and how humid it is will determine how big or small your dehumidifier needs to be. The larger and wetter your space, the more powerful your unit will need to be. The size of dehumidifiers is based on the amount of moisture they can remove in a day:

Small : Removes 14-16 liters of moisture per day
Medium : Removes 16-23 liters of moisture per day
Large : Removes 28-33 liters of moisture every day

How many square meters can a large 33 liter or more dehumidifier cover per day?

Typically, a 33 liter or larger dehumidifier can cover spaces of 65-140 square meters, depending on space conditions. If a space is super humid, it will require a higher capacity. So a 33 liter dehumidifier can probably serve a 65 square meter humid space or a larger 140 square meter space that is only slightly humid.

Will the dehumidifier fan continue to run after reaching the desired humidity level?

Yes. On most models it continues to run for about 3 minutes and then stops. Power consumption drops from several hundred watts (while the compressor is running) to 70 or 80 watts when only the fan is running at high speed. When the fan is turned off, the standby power consumption is approximately 1 watt for most models.

What about the dehumidifier filter? Needs to be replaced?

Most dehumidifiers come equipped with an air filter. The filter’s job is to filter out large particles (from the air) to prevent them from entering the dehumidifier where they could damage internal parts such as the compressor, evaporator, etc. of the unit.
The filter does not need to be replaced. It can be rinsed and / or vacuumed to clean it. This should be done regularly (every 2 weeks or so) if you run the dehumidifier 24/7. If you run it less frequently, the filter does not need to be cleaned as often.

Will the dehumidifier restart automatically after a power outage?

Yes, most dehumidifiers will automatically restart after a power outage with the previous settings saved.

Do I need to buy a separate hygrometer (device for measuring humidity) together with my dehumidifier?

Almost all dehumidifiers come equipped with a built-in hygrometer. The dehumidifier will tell you the ambient humidity in the room on its control panel. Some built-in hygrometers are more accurate than others, but most will give you a good enough reading for most applications.

The only time you should really consider purchasing a separate hygrometer is if you are planning to dehumidify a very large space. Then you can use the hygrometer to determine the humidity levels in different places away from the dehumidifier to determine

What is the lowest humidity that a dehumidifier can achieve?

Most dehumidifiers can be set to dehumidify the air in a room up to 35% RH (relative humidity). In most cases the up or down arrows on the dehumidifier control panel are pressed to set the desired humidity level. The lowest that can be set is generally 35% RH. Most of the dehumidifiers we tested were able to reach this humidity level without any problems.

Dehumidifier, final opinions on these electric anti-humidity devices

The arrival of summer means sunny skies, warm weather, and – you guessed it – lots of humidity. Unfortunately, that stickiness doesn’t always stay out. It can come into your home and make already damp spaces like the bathroom and laundry room even more humid.

That’s where a dehumidifier comes in. Unlike a humidifier, which adds moisture to the air, a dehumidifier removes excess water from its environment, preventing mold, mildew, and other problems that can harm your health.

There are three main types of dehumidifiers:

  • Compressor-based dehumidifiers
  • Thermoelectric dehumidifiers
  • Desiccant dehumidifiers

Full-size compressor-based dehumidifiers (like the ones in the photo above) are capable of removing several liters of water from the air each day. Most desiccant and thermoelectric units can remove only a few milliliters per day at best.

Compressor-based units can be used to dehumidify any (reasonably) sized space to any humidity level. Most thermoelectric and desiccant units can only be used to dehumidify small spaces (like a closet, for example) and only if the humidity level in that space is not very high.

Since thermoelectric and desiccant units simply won’t work for most people in most situations, we will save our discussion of them for later.

Our focus for most of this guide will be on full-size compressor-based dehumidifiers – the only type of dehumidifier that will serve the needs of most people in most situations. This is also the type of dehumidifier that most people traditionally think of when they hear the word “dehumidifier.”

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