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Best dehumidifiers 2021

Best dehumidifiers 2021
(Image credit: Getty)

If you’re dealing with damp, the best dehumidifiers can help you remove all that excess moisture, which in turn helps prevent the growth of pungent mold and mildew that can affect your home and your health. Dehumidifiers are designed to draw in humid air, pushing it through cool coils to extract the moisture, then condense it into a water tank that sits inside the dehumidifier. The dry air is then circulated back into the room. 

There are two main types of dehumidifier: desiccant models, and condensing models. The best dehumidifiers for very large rooms and basements are those with a large water reservoir, as these machines will be working overtime to remove extra amounts of moisture and dampness. These are usually more premium dehumidifiers designed with extra fan speeds, and some even have integrated pumps, which enable you to drain water up into a sink or out through a window.

Before looking through our selection of the best dehumidifiers to find the right one for you, get clear on why you think you need a dehumidifier, the size of the space you want it to tackle, and how much budget you’re willing to spend. We say that because there’s a big difference in prices between the top dehumidifier brands, and generally the bigger these machines are, the more they’ll cost. All dehumidifiers should state a square foot capacity, indicating what size of space they can work in.

Finally, to keep running costs down, look for more eco-friendly Energy Star-rated dehumidifiers. For further healthy home air content, read our guides to the best humidifiers and the best air purifiers

1.  Soleus Air DSX-70EMW-01: Best overall dehumidifier 

Soleus Air DSX-70EMW-01 Dehumidifier review

(Image credit: Home Depot)

Soleus Air DSX-70EMW-01 Dehumidifier

The Soleus Air DSX-70EMW-01 is a smart-enabled dehumidifier that has a large capacity.

Sleek design  
No pump  

Removing up to 70 pints of water a day, the Soleus Air DSX-70EMW-01 Dehumidifier delivers everything you’d expect from a large capacity model and more. The only model in our round up that’s WiFi-enabled, the Soleus Air DSX-70EMW-01 can be programmed from your phone and allows you to create schedules that suit you. 

The Soleus Air DSX-70EMW-01 is Energy Star-rated and also features MyHome Mode, which has a selection of pre-programmed humidity levels that are optimum for each of the rooms in your home. With handy wheels so that you can move this model around, the Soleus Air doesn’t have an in-built pump so you will have to manually empty its water tank. 

With all the smart features and a large capacity, this dehumidifier offers good value and a great option for removing lots of moisture in areas such as basements, large rooms or whole homes. 

2. GE APEL45LY Dehumidifier: Best dehumidifier with a pump 

GE APEL45LY Dehumidifier review

(Image credit: Home Depot)

GE APEL45LY Dehumidifier

The GE APEL45LY Dehumidifier can collect up to 45 pints of water in one day.

In-built pump 
Hidden rollers for easy movement 
Not smart-enabled 
Larger capacities are available  

Adding convenience with an in-built pump, the GE APEL45LY Dehumidifier will take care of emptying its water tank with very little effort on your behalf. 

Collecting up to 45 pints of water a day, this dehumidifier has an LED digital display, auto shut-off, and is also Energy Star-rated. Other great features about the GE dehumidifier are the three different fan speeds, its dark finish, and how quiet it is when operating. 

What it does lack, however, are smart features so that you can control it from your phone which would make this model even more attractive.

3. Frigidaire FAD704DWD: Best dehumidifier for basements 

Frigidaire FAD704DWD review

(Image credit: Lowe's)

Frigidaire FAD704DWD Dehumidifier

The Frigidaire FAD704DWD has a large capacity, making it ideal for tackling moisture in basements.

 Can remove up to 70 pints of water a day  
 Helps control allergens  
 Doesn’t have a pump  
 Doesn’t have a 24-hour timer 

The Frigidaire FAD704DWD Dehumidifier can remove up to 70 pints of water a day, so it’s ideal for large areas or damp basements. The water reservoir is large but this model doesn’t have a pump, so emptying out the tank will be pretty heavy. 

This dehumidifier is also missing a 24-hour timer and auto defrost modes but it is Energy-Star rated. Its sturdy design and casters mean it’s relatively easy to move around should you need to change the rooms you use it in. The Frigidaire FAD704DWD is also a quiet model and the sealed system of the humidifier is protected by an extended warranty. 

4. Keystone KSTAD504D dehumidifier: Best energy-efficient dehumidifier 

Keystone KSTAD504D dehumidifier review

(Image credit: Home Depot)

Keystone KSTAD504D Dehumidifier

The Keystone KSTAD504D is ideal for larger rooms and is energy efficient.

 Energy Star rated 
 Auto shut-off 
 No pump  
 Cheaper models are available  

The Keystone dehumidifier is great for removing moisture from rooms up to the size of 4,500 square feet. It doesn’t come with a pump but it can collect up to 50 pints of water in one day. Handy features include an LED display, full bucket alert, and auto shut-off when the water tank reaches full capacity. 

There are three useful functions: auto, turbo, and normal and there’s also an alert when the filter needs cleaning - helping you to stay on top of the maintenance of the unit. The dust filter is removable so that you can take it out and give it a good clean, too. 

Energy Star-rated, this model will also auto-restart if there’s a power outage, remembering all of your settings in the process. 

5. Pro Breeze PB-02-US Dehumidifier: Best bathroom dehumidifier 

Pro Breeze PB-02-US Dehumidifier review

(Image credit: Home Depot)

Pro Breeze PB-02-US Dehumidifier

The Pro Breeze PB-02-US Dehumidifier is ideal for smaller spaces including bathrooms, wardrobes or even RVs.

 Great value 
 No pump 
 Only one fan speed  

If you’re looking for a dehumidifier that can tackle moisture in huge basements or rooms in your house, then the Pro Breeze PB-02-US Dehumidifier is not the one. However, this dehumidifier is not designed to take on huge rooms. Instead, this model will be a great fit for bathrooms, wardrobes, or small spaces that don’t require a huge capacity dehumidifier. 

The Pro Breeze dehumidifier is energy efficient and operates really quietly, making it ideal for small offices too. An LED light will let you know when the Pro Breeze’s tank needs emptying and although there isn’t an in-built, with a much smaller tank, you wouldn’t really need one. 

How to maintain a dehumidifier 

Foremost amongst the tasks you should regularly undertake to keep your dehumidifier in top condition is empty the collection tank frequently and clean it out with soap and warm water or disinfectant. Like a humidifier, mold and mildew can build up quickly where water is stored, and any impurities inside the machine can get dispersed into the air.

Secondly, be sure to clean the intake and exhaust grills at least once a season with a vacuum and brush attachment to help improve the longevity of the system. And, while we’re talking about exhausts, be sure to maintain at least a 6-inch gap between the back of the dehumidifier and the wall so the exhaust is not blocked, which could cause the machine to overheat.

And, thirdly, always make time to check the dehumidifier’s humidistat and adjust it when necessary to keep the humidity levels between a safe 40 and 50 percent.