Best Dehumidifiers For Basements – Reviews and buying guide For 2021

These days, basements are used for much more than storage. They have become multi-purpose areas that hold a lot of value for modern homeowners. Many people turn their old musty basements into finished game rooms, multimedia areas, or small studio apartments. No matter how you choose to use your basement, there’s one aspect of the space that you need to stay on top of.

Basements are notorious for being musty and humid. Because they are located under the ground, taking care of moisture is no easy task. In most cases, you can’t run external HVAC or ventilation systems to the outside of your home like you would on your ground floor. As a result, moisture can stick around and make the air feel awful down there.

It’s not just a matter of comfort either. Moisture and humidity can cause a slew of structural issues and health risks. So, how are you supposed to make your basement safe and habitable? Well, you can use a dehumidifier.

The best dehumidifier will be able to extract moisture from the air for removal. These devices are advanced pieces of equipment that are more than capable of controlling humidity levels in large basements. This results in a more comfortable living space and decreased chances of experiencing issues.

Dehumidifiers are a must-have for any homeowner with a basement. In this guide, we’re going to recommend some of the best products on the market. We’ll also go over some important information about dehumidifiers that you need to know.


hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier

This dehumidifier from hOmeLabs is built to treat very large basements with ease. The sleek device features a ton of great features to control your comfort. There are a couple of fan speeds available. You can also choose the desired humidity level you’re after. When it comes to operation, you can implement a timer or put it on continuous mode.

Draining is relatively simple thanks to the storage tank. However, if you don’t want to do that, there is an outlet for a drainage hose. There is no hose included. Though, the fitting is the right size for a standard garden hose. The machine also lacks a proper water pump. So, you’ll have to rely on gravity to empty it out with the drain.

Treats 4,500 square feet
Removes 50 pints of water a day
1.8-gallon tank
Drainage hose connection
Filter reminder
Turbo fan controls
Timer and continuous mode
Automatic shutoff
Modern design
Auto defrost

Doesn’t include drainage hose
No built-in pump
Must empty tank multiple times a day



Frigidaire FFAD7033R1 70-Pint White Dehumidifier

The Frigidaire dehumidifier has a very compact and portable design. It’s on caster wheels, so you can easily roll it around your basement. There’s also a pull-up handle. When it comes to efficiency, this machine performs well across the board. It has a digital control panel where you can select your humidity level, set the timer, and more.

Like the previous model, this device doesn’t have a built-in pump or hose. However, you can connect your own hose and use the continuous operation mode. If you don’t have access to a floor drain, there is a sizable storage tank. The tank has a small clear window to help you monitor water levels. Plus, the dehumidifier will produce an alert sound and shut off automatically once the tank is at capacity.

Removes 70 pints of moisture a day
13.1-pint tank
Low-temperature operation
Automatic shutoff
Continuous operation with a drainage hose
24-hour timer
Intuitive control panel
Caster wheels for portability
Two-year warranty

Doesn’t come with a hose
No water pump
No defrost feature



Vremi 1,500 Sq. Ft. Dehumidifier

If you’re looking for a dehumidifier for medium or small rooms, this option from Vremi may be for you. It’s a very compact device that measures 16.2 inches wide, 10.4 inches deep, and 19.9 inches tall. As a result, it doesn’t take up much room. Not only that, but the sleek and modern design will fit right in regardless of your decor.

In total, the machine can remove up to 22 pints of water a day. All of that condensed water is stored in a tank that has a small window for visibility. Alternatively, you can connect the system up to a hose so that it can drain automatically. There is a 24-hour timer. However, it can also be set to turn off whenever the tank is full. All of these settings can be chosen on the control panel up top.

Removes 22 pints of moisture a day
Treats up to 1,500 square feet
24-hour timer
Automatic shutoff
Electronic controls
Small footprint
Built-in wheels and side handles
Washable filter

No hose included
Higher decibel rating
No water pump



LG PuriCare 70-Pint Dehumidifier

LG has designed this dehumidifier to be as easy to use as possible. One of the most unique features is the side-loading bucket. It has a simple handle, which helps to prevent accidental spills as you make your way to the sink. We also like the position of the bucket. It’s below the drainage hose to ensure that any leaks are caught instead of affecting your basement floor.

On top of the machine, you’ll find a humidistat. It lets you choose the humidity level you want. Unlike other machines, this one will work to maintain those levels at all times. You can hear the compressor turn on and off as moisture levels change, much like an air conditioner unit.

Removes 70 pints of moisture a day
Treats up to 2,000 square feet
Built-in humidistat and electronic control panel
Full tank alerts and automatic shutoff
Continuous drain option
Works in cold climates
Automatic restart
One-year warranty
Unique side-load bucket

No 24-hour timer
No water pump





Ivation 70-Pint Dehumidifier with Pump

From Ivation is this 70-pint dehumidifier. It does a pretty good job across the board at making large basements feel comfortable. The unit has all the features you would expect. These include an automatic shutoff system, 24-hour timer, electronic control panel, and more.

However, it also a built-in condensate pump, which is something that not a lot of dehumidifiers have. You can connect a drainage hose to the back of the machine. The pump will move the water out. You don’t have to rely on gravity alone to empty it out. Of course, it also has a sizable reservoir tank if you don’t have access to a drain.

Treats up to 4,000 square feet
Removes 70 pints of moisture a day
Continuous drainage mode with pump
Wheels and handles for portability
24-hour timer
2.25-gallon tank
Automatic shutoff and restart
Adjustable fan speeds

Prone to leaking at drainage connection
The humidity sensor isn’t as accurate as other options



AlorAir 198PPD Basement/Crawlspace Dehumidifier

The AlorAir basement dehumidifier is a heavy-duty option for those who need the very best that money can buy. It’s incredibly powerful and is capable of getting rid of up to 90 pints of moisture per day. Best of all, it can work in temperatures as low as 36 degrees Fahrenheit. A Hot Gas Valve defrosting system ensures that the unit stays operational even in the dead of winter.

While other dehumidifying equipment is made to be seen, that’s not the case with this model from AlorAir. The small compact size makes it easy to fit into any basement or crawlspace. Once you set your spot, you can take control with the included remote.

Removes 90 pints of moisture a day
Hot Gas Valve defrosting system
Corrosion protection inside
Remote control operation
Produces less than 58 decibels of noise
Automatic humidistat controls
Built-in water pump
Five-year warranty

No control panel on the device
Doesn’t have a reservoir tank



Ivation 70-Pint Energy Star Dehumidifier

Here’s another great machine from Ivation. At only 40 pounds, this is one of the lightest dehumidifiers you’ll find on the market. Small caster wheels and discreet side handles make moving the machine a breeze. Once you get it where you want it, getting rid of moisture in the air is as simple as plugging the machine in and choosing your settings. The device will take care of the rest.

It does have a continuous drainage mode. However, there isn’t a water pump. So, you’ll have to use a floor drain. If that’s not an option, there is a water tank included. The unit will shut off once the tank is filled to capacity. The dehumidifier also has an automatic restart function and a 24-hour timer for convenience.

Removes 70 pints of moisture a day
Treats 4,500 square feet
Bright LED display
Lightweight build
Auto shutoff and restart
Frost sensor and defroster
24-hour timer

Smaller water reservoir tank
No water pump
Doesn’t automatically adjust for humidity levels



Honeywell TP70WK 70-Pint Energy Star Dehumidifier

Honeywell is known for making some high-quality home equipment. The 70-pint dehumidifier is no different. It’s a beautifully designed unit that’s very efficient. In total, it can treat basements that are as big as 4,000 square feet.

The machine has relatively simple controls. An LED readout display and intuitive buttons let you adjust settings as you please. There’s a built-in humidistat with sensors that constantly monitor the air. The unit will turn on and off based on relative humidity levels, ensuring that your space is always comfortable.

Removes 70 pints of moisture a day
Treats 4,000 square feet
Washable air filter
Anti-spill tank
Includes drainage hose
Auto shutoff and restart
Simple control panel
Portable design

Does not have a pump
Doesn’t work in temperatures below 41 degrees



Aprilaire 1830 Basement Pro Dehumidifier

Keep your basement safe and cozy with this unit from Aprilaire. It’s engineered with heavy-duty performance in mind. While other units are designed with aesthetics in mind, this model is meant to be installed permanently. It’s discreet and takes up very little room. So, you can have it running at all times without even noticing it.

Another great advantage of this machine is that it has a built-in water pump. There isn’t a water collection tank. The device relies on the pump and drainage hose to provide you with continuous drainage around the clock. The control panel isn’t as detailed as some other machines on this list. However, it does have a digital readout for simplicity. Once you choose your settings, you can let it do its thing and forget about it.

Removes 70 pints of moisture a day
Treats 2,200 square feet
Built-in pump
Compact build
Produces only 54 decibels of sound
Digital control panel
Five-year warranty

No water tank
Limited controls



Keystone Energy Star 70 Portable Dehumidifier

If simplicity and convenience are what you’re after, check out this model from Keystone. It has a number of great features that will make your basement comfortable in no time. First, it has multiple performance modes. If you need a boost of comfort, you can switch the machine onto Turbo mode to get results quickly. There’s also an automatic defrosting feature. It makes sure that the basement is protected even in freezing temperatures.

You have the option to use a drainage hose or the built-in collection tank. The unit doesn’t have a pump. So, you’ll need to position it over a floor drain if you want to run it in continuous mode. When you’re using the tank, you can take advantage of the 24-hour timer and automatic shutoff feature.

Removes 70 pints of moisture a day
Treats 4,500 square feet
Electronic control panel
Turbo mode
Automatic defrost function
24-hour timer
Transparent window on collection tank
Automatic shutoff and full bucket alert

Drainage hose not included
No water tank
Causes noticeable vibrations
Design of the tank makes it easy to spill



How Does a Dehumidifier Work?

The goal of a dehumidifier is to regulate moisture levels in the air. The problem with basements is that the temperature often differs dramatically from the rest of the home. This is because of the basement’s location underground and a lack of proper ventilation. That difference in temperature results in condensation and dampness. Depending on your climate, moisture issues can even result in noticeable puddles on the floor.

Dehumidification works to get rid of that moisture by working with the principles of condensation. They operate very similarly to air conditioning units. Essentially, the machine will expose the air to extreme temperatures, causing the humidity to condensate. This is done through the use of refrigerant and condenser coils. Powerful fans draw warm moist air into the unit. There, it flows through the cold condenser coils, causing the moisture to condensate and collect below. The low-humidity air then exits the unit for recirculation.

You might encounter more than one type of dehumidifiers on your search. However, most of them work on that same basic technology. It’s an effective method that has been working for several decades. While you might not be able to notice an immediate difference when you turn the machine on, you’ll be surprised by what a single machine can do in just a few hours.


Why Do You Need a Dehumidifier?

If you’re on the fence about whether or not you need a dehumidifier in the first place, consider all of the problems that moisture can cause in your home. Homes are built to keep excess moisture out. It’s why we have air conditioning systems and ventilation units.

High humidity levels in your basement can wreak havoc on the many structural components. Over time, moisture can damage wooden supports and make any drywall fall apart. It can also cause metal piping to corrode. All of these problems take time to happen. Unfortunately, once they become noticeable, it’s often too late. If you live in a colder environment, you also have freezing to worry about. Even a little bit of moisture on your walls or pipes can cause freeze damage in the winter.

Another common issue in basements is mildew. Bacteria and mold spores thrive in damp humid environments. Mold can quickly appear on your walls, floors, and any other smooth surface. Not only is mildew unsightly, but it can pose a serious health risk. Mildew is a common allergen that can cause complications with your respiratory system. You and your family can also experience serious skin irritation and illness. In the worst-case scenario, that moisture in your basement can lead to the growth of black mold. Black mold releases potentially fatal mycotoxin spores.

Finally, high moisture levels can cause pest infestation. Like bacteria and mildew, pests gravitate to areas with access to water. Roaches, dust mites, silverfish, earwigs, and more are attracted to the dampness in basements. They could easily spread to the rest of your home if you don’t take care of the problem quickly. On top of all that, your basement could attract rats and other rodents.

Needless to say, dehumidification is a must if you want to keep your home comfortable. Generally, it’s recommended that homeowners invest in dehumidifiers anytime the humidity levels in their basement reaches 50 percent. Though, you can still use a machine if humidity is a bit lower. It’s all about what makes your space comfortable. You can use a simple hygrometer to test humidity levels and see what kinds of equipment your space will need.


Features to Look for

When you’re shopping for the right dehumidifier, there’s a lot of things to consider. You need to think about the size of your space and what the current humidity levels are. From there, you can narrow down your search and look for the following features.

Good Coverage

First and foremost, you need a machine that can handle your space. Basements tend to be expansive, so units with a large capacity are always recommended. Manufacturers will include square footage ratings on their equipment to give you a better idea of what its capable of.

High capacity dehumidifiers should also have good CFM ratings. The CFM measurement refers to the velocity of air that flows in and out of the space. A higher CFM rating means that the machine is capable of treating a lot of humid air at one time, which is great if you have a big space.

Appropriate Drainage System

Next, you should think about the drainage system. As dehumidifiers run, condensed water needs to be removed from the machine. There are a few ways to handle this. The easiest is with water pump and drain hose. This is great if you have a floor drain in your basement or access to a sink. The pump will move the water from the collection area automatically, ensuring that you can run the machine around the clock without any issues.

Another option is a collection bucket. This type of dehumidifier is ideal if you don’t have any plumbing in your basement. Basically, the water will collect in a storage container for disposal. While these machines add a bit more versatility when it comes to placement, they need to be emptied regularly. So, you’ll have to stay on top of the water levels or invest in a unit that will automatically turn off when it has a full bucket.

Automatic Features

Some of the best dehumidifiers have a built-in humidistat or hygrometer. They will automatically monitor the relative humidity in the space and adjust accordingly. It’s kind of like a standard air conditioner. The data these systems collect ensure that the space is always comfortable. Plus, you can set the humidity control to a setting that you like.

Other automatic features you can get include restart and shutoff. With auto restart, you can rest easy knowing that your machine is always working. If you ever experience a power outage, the unit will turn back on after power is restored so that it can continue adjusting humidity levels. With an automatic shutoff system, the equipment will stop running once the water tank is full. This can help you avoid messes and leaks.

Size of Water Tank

If you choose to go with a dehumidifying machine with a bucket or tank, you’ll need to consider the amount of water it can hold. Units with a higher capacity can hold upwards of 70 pints of moisture. Typically, this is more than enough for treating large rooms throughout the day.

ACH Rating

Some basements are going to be damper than others. As such, there’s no one-size-fits-all machine that will work for everyone. The ACH rating represents a dehumidifier’s efficiency based on moisture levels in the air. ACH stands for air changes per hour. Usually, you’ll find ACH rating between 3 and 6.

With an ACH of 3, you can treat a moderately damp basement with humidity levels around 60 to 70 percent. Once you get past 70 percent, you will need a machine with an ACH of 4. If your hygrometer shows that humidity is between 80 and 90 percent, you’ll need ACH 5 equipment for efficient moisture removal. Finally, ACH 6 is the most powerful. These machines can take care of spaces with 100 percent humidity.

Operating Temperatures

Contrary to popular belief, humidity doesn’t just affect regions with tropical climates. You can experience high humidity levels even if the room temperature is near freezing. If that’s the case, you need to make sure that your dehumidifier is capable of operating at those low temperatures. Several options on the market can work efficiently in environments as cold as 33 degrees Fahrenheit. Typically, they will have automatic defrosting features to make sure that the condensing coil doesn’t get frozen.

User-Friendly Control Panel

To make the most out of your investment, go with a device that has an intuitive control panel. It’s good to have options when it comes to performance. Detailed controls will let you manipulate fan speeds and humidity levels. Depending on the particular product you choose, you may also be able to see when you need to clean out the air filter or empty out the water tank. Go with something that has a clear digital readout if simplicity is your top priority.


The best dehumidifier can transform your basement. It’ll turn musty old spaces into areas that you’ll want to utilize. Take some time when you’re selecting the right machine for your needs. This is a big investment that will keep your home protected while providing you with all-day comfort. Just keep your needs and the needs of your basement in mind to find the perfect model.

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