The word mold strikes fear in the heart of every homeowner. Mold is unsightly. If allowed to spread, it can wreak significant, costly damage. Some types of mold even pose health risks, especially for people who have asthma or an immune system disorder.

Best Dehumidifier for Mold

What Cause Indoor Mold Growth?

An excessive amount of moisture is responsible for indoor mold growth. This moisture may originate from an aging roof, leaky plumbing, a damp basement, HVAC condensation, drafty windows or high humidity. Warmth and food sources like wood, paper, and fabric are facilitators of mold growth.

Our Recommended Dehumidifiers for Mold

Dehumidifiers are available in an array of sizes and capacities. Our list of dehumidifiers encompasses the best of the best that online retailers have to offer at all size and price points.

30 Pint Dehumidifiers

Pro Breeze PB-03-US Electric Mini Dehumidifier Review

One switch controls the power to this tiny dehumidifier. Weighing a mere 5 pounds, you can easily relocate the dehumidifier where you need it. Thanks to a brushless motor and a thermoelectric unit, the dehumidifier is barely audible.

Although it’s small, the Pro Breeze Dehumidifier can remove 18 ounces of water from a 2,200-cubic-foot room. When you see the full indicator light up, you can take out the see-through tank and drain it by pulling the plug. An auto shutoff mechanism protects the dehumidifier from overfills.

Pro Breeze Electric Mini Dehumidifier, 2200 Cubic Feet (250 sq ft)

Ivation 30 Pint Energy Star Dehumidifier Review

Control the humidity in a 1,500-plus square-foot room with this Ivation dehumidifier. The tank is designed to hold 1.3 gallons, and it drains manually or continuously. You can program the temperature, and the humidity level as the dehumidifier extracts up to 30 pints of moisture.

You get the benefit of two fan speeds, a 24-hour timer, a washable filter and an auto-restart function. The 6-foot-long power cord gives you plenty of placement leeway. Plus, there are casters on the bottom so that you can move the dehumidifier without assistance.

Ivation 30 Pint Energy Star Dehumidifier Review

Vremi 1,500 Sq. Ft. Dehumidifier

Stop mold in its tracks and take care of your health all in one with the Vremi Dehumidifier – the perfect machine to help you keep your home in good shape.

Remove up to 22 pints from the air each day in rooms up to 1500 sq ft without any hassle with th e Vremi Dehumidifier, and keep your bedroom, living room, kitchen and basement free from unsightly and unhygienic mold growth.

Choose to run the Vremi Dehumidifier on a 24 hour cycle, or adjust it to your ideal moisture setting, and watch it run smoothly until its water tank is full, when it will shut off automatically, saving your from spillages.

The Vremi Dehumidifier is quiet, no matter which fan speed you set it to, so you can rest assured knowing that a peaceful night’s sleep doesn’t have to be disturbed, even on those extra humid nights.

Remove both acrid odors as well as bacteria and allergens from the humid air and breathe easy once again knowing your home is in good hands. With its turbo mode, you can increase the Vremi Dehumidifier’s fan speed to its highest setting for the ultimate removal of moisture and odors.

Vremi 1,500 Sq. Ft. Dehumidifier

TOSOT 1,500 Sq. Ft. 30 Pint Dehumidifier

Keep your home free from mold and other nasty pollutants with the TOSOT dehumidifier, and breathe a little easier each day.

TOSOT 1,500 Sq. Ft. 30 Pint Dehumidifier


Removing up to 30 pints of water in a 24 hour period, you’ll find the TOSOT works well in spaces up to 1500 sq ft. That means it’s perfect for larger rooms, including your basement, laundry room and bathroom, where you’re most likely to find the build-up of mold spores.

The TOSOT is perfect for creating that comfortable environment at home too, and can increase the lifespan of your furniture, documents and even your clothing.

With its continuous gravity drain, you can continually pump water out of the TOSOT, meaning it can be run safely over an extended period of time. This means that there’s no need to worry about spillages or other dangers that come with a water tank.

With its ability to run around the clock, the TOSOT’s quiet operation leaves you forgetting you’ve even turned it on.

You’ll barely even notice the TOSOT with its highest noise output of 48dB, which is the equivalent of a normal conversation. That also means that it can be run throughout the night without disturbing your sleeping schedule.

TOSOT 1,500 Sq. Ft. 30 Pint Dehumidifier Review

50 Pint Dehumidifiers

Frigidaire 50-Pint FAD504DWD Dehumidifier

When it comes to effective humidity control, the Frigidaire has you and your home covered.

Frigidaire 50-Pint FAD504DWD Dehumidifier

Frigidaire FAD504DWD

If you struggle with mold growth or the side effects that come from living in a humid environment, this is the perfect dehumidifier for you.

The Frigidaire FAD504DWD is a portable dehumidifier made for wet rooms between 1500-3000 sq ft. This fantastic dehumidifier will remove up to 50 pints of water per day and dry the air in your chosen room quickly and efficiently.

With its easy access bucket, removal of the water tank is quick and painless. When its 2 gallon capacity tank is full, simply remove and empty. Its handy splash guards will make sure spillages are kept to a minimum.

With 2 fan speeds, the Frigidaire is easy to customize, and, with automatic shut off, you don’t need to worry about the Frigidaire overflowing or overheating. It takes care of itself, whilst providing your home with a drier, and fresher atmosphere, halting mold growth in its tracks.

The Frigidaire works so well because of its fantastic washable mesh filter, which helps to clean the air in your damp spaces quickly and efficiently, removing dust and allergens and reducing bacteria.

Frigidaire 50-Pint FAD504DWD Dehumidifier Review

70 Pint Dehumidifiers

Frigidaire FFAD7033R1 70 Pint Dehumidifier

The Frigidaire FFAD7033R1 model extracts 70 pints of moisture daily even in a room temperature as cold as 41 degrees Fahrenheit. You can lock the controls, adjust the three-speed fan and set a timer. Features like a humidity level readout and a continuous drain streamline this ultra-quiet dehumidifier.

A set of caster wheels along with a top and side handles help you move the dehumidifier. If you opt to empty the water manually, the tank’s carrying handle proves useful. There is also a cord wrap for tidy off-season storage.

Frigidaire 70-Pint Dehumidifier Review (FFAD7033R1 Model)

Keystone High Efficiency 70-Pint Dehumidifier

With the Keystone Dehumidifier, you can breathe a little easier and look after your home all in one, as it tackles the humid conditions that you face each day.

Removing up to 70 pints of moisture from the air every day, this dehumidifier really puts the work in, and is perfect for areas of severe humidity.

Dehumidify your spaces quickly and easily. The Keystone is designed to tackle rooms of up to 4500 sq ft, meaning it’s perfect for large spaces including open-plan apartments and homes, office spaces, basements, living rooms and bedrooms.

The Keystone has a range of fantastic settings to help keep you comfortable and your home safe from the growth of mold and other unpleasant effects of extreme humidity.

With electronic controls and a stylish LED display, you can see everything easily. Use the control panel to set 24 hour timers, as well as each mode: normal, turbo and auto-defrost. It’s perfect for every situation.

With a 1.6 gallon water tank and a transparent water level indicator, the Keystone keeps you in the loop and its easy to see exactly when the tank needs emptying.

There’s no need to worry if you’ve left the Keystone running whilst you’re out either, because it’ll automatically shut off once it reaches the full bucket level. Now you’ll never have to worry that you’ll get back home to a spillage.

Keystone High Efficiency 70-Pint Dehumidifier

hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier

Designed for the modern home, the hOmeLabs Dehumidifier combines a sleek design and incredible power to ensure you and your home are protected from the perils of a humid home.

Eliminate moisture, odors and allergens from your atmosphere with the hOmeLabs Dehumidifier, which includes a built-in pump compressor to remove nasty bacteria from the air, leaving you breathing easily.

This dehumidifier is perfect for rooms up to 4500 sq ft, including your basement, laundry room, bathroom, kitchen, bedrooms and living room.

With its 1.8 gallon water tank capacity, the hOmeLabs Dehumidifier will remove up to 50 pints of moisture from the air daily, leaving your spaces drier, with less possibility of mold growth and damage to your home and belongings.

Incredibly easy to use, the hOmeLabs Dehumidifier can be adjusted to the perfect moisture setting depending on how much power you need.

A continuous 24-hour cycle that runs until the water tank is full is a great way to keep your home protected whilst you’re doing other things, plus the hOmeLabs Dehumidifier will shut off automatically once it reaches its full capacity, so you never have to worry about spillages ruining your floors.

hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier

Buyer’s Guide

When you choose to purchase a dehumidifier, you also choose to make an investment in your home and your health. Before you guy, take a look at the features you absolutely need and the ones that are simply handy conveniences.

Best dehumidifier for Mold Prevention

Necessary Dehumidifier Features

The size of the space that needs dehumidification should be the main detail you focus on when searching for a dehumidifier. You’ll need one that is rated to cover the square footage or cubic feet of the room. Usually, the more moisture a dehumidifier can extract, the bigger space it can cover.

Motor burnout and tank spills are two problems you want to avoid. Therefore, look for a dehumidifier that has automatic safety functions such as a shutoff and a defrost mechanism. Features like a full-tank indicator can help prevent an overfilled reservoir.

Lugging a tank filled with water can be an arduous task. To make trips to the sink easier, pick a model with a tank that has a handle. Reservoirs that easily slide in and out and have a secure lid can keep water from sloshing onto the floor.

Best dehumidifier

If you need a heavy-duty dehumidifier, you don’t want to struggle under its weight. Large dehumidifiers should have wheels so that you can push instead of lift. They should also have handles to help you keep the dehumidifier steady during transport.

Handy Conveniences

A continuous drain lies in a gray area when it comes to an extra versus a necessary feature. Even though you can get by without a continuous drain, doing so with a big dehumidifier may be difficult for some people.

If you want precise control over the relative humidity, a humidity-equipped dehumidifier is a way to go. If you simply want to keep track of the humidity level, you can use a super-cheap hygrometer and buy a more basic dehumidifier.

Best Mold Dehumidifier

Need more information? Read our article: Can a Dehumidifier get Rid of Mold?

Some models offer more than one fan speed. A dehumidifier with a variable-speed fan is helpful if you have a situation where quick moisture removal is needed, such as during the dry-out phase of a flooded basement. Otherwise, a dehumidifier with one fan speed is fine.

Finally, there is the timer. Sure, a timer is always great to have on an appliance. However, if mold growth is a concern, you’ll most likely need to run your dehumidifier around the clock, which makes a timer an extra, not a necessity.

Best dehumidifier to Kill mold


What Is a Cheap Way to Prevent Mold Growth?

Slapping on a new roof or gutting a home’s plumbing system can cost 10s of thousands of dollars. The average homeowner doesn’t have that kind of money lying around. Replacing a roof or a plumbing system doesn’t address the issue of high humidity.

However, a dehumidifier is an easy solution to reducing indoor humidity, and it’s a budget-friendly solution too.

Can and Will a Dehumidifier Kill Mold Effectively?

How Does a Dehumidifier Work?

The sole purpose of a dehumidifier is to exchange moist air for dry air to reduce indoor humidity. To make this happen, a dehumidifier draws in the room’s moist air with a fan. Once inside of the dehumidifier, the air passes over an evaporator and a condenser, which cool the air and extract its moisture.

All the moisture collected by the dehumidifier drops into a collection tank, and the dry air is pushed back into the room. After a short span of time, the humidity level in the room decreases. When the tank is full, you remove it, dump the water and reinsert the tank.

Best Dehumidifier for Mold Reviews

Do I Have to Dump the Water Myself?

Not necessarily. Many dehumidifiers are equipped with a pump. You can connect a tube or hose to these humidifiers and thread it out of a window or attach it to a drain or sink. As the dehumidifier collects moisture from the air, that moisture is directed through the hose and released, so you don’t have to lift the tank and empty its contents.

Dehumidifiers without a continuous drain are often small with an easy-to-lift tank.

What’s the Ideal Relative Humidity?

To prevent mold, the relative humidity to strive for should range from 30 to 50 percent. However, it’s acceptable to keep your home’s relative humidity below 60 percent. Humidity levels above 60 percent can spark mold growth. Conversely, humidity levels below 30 percent may lead to dry sinuses and an increased likelihood of catching a cold or the flu.

Best Dehumidifier for Mold: Buying Guide

How Can I Tell If My Home Is Humid?

Certain signs point to high humidity, and they are easy to spot. A musty smell in the air is one telltale sign. Discolored areas on the wall or ceiling are other indicators. Excess moisture may also cause paint to crack or wood surfaces to bubble.

If you’ve noticed signs of high humidity, you can get an exact relative humidity readout with a hygrometer. A hygrometer measures a room’s moisture level, and it shows the percentage on a needle dial or a digital display.

Do I Have to Use a Hygrometer to Monitor My Dehumidifier?

Only if you want to use one. Many dehumidifiers have a humidistat or a built-in hygrometer. While the inclusion of a humidistat was once reserved for pricey dehumidifiers, this technology is available on numerous affordable models.

A dehumidifier with a humidistat can monitor the relative humidity and be programmed to reach and maintain a specified humidity level. If you choose a model without one, you can still tell if it’s working by keeping an eye out for the signs of high humidity.

Dehumidifier for Mold

What Do Manufacturers Mean by Pints Per Day?

In a dehumidifier’s product description, you’ll see a number described as pints per day. This number tells you how much moisture the dehumidifier can remove from the air in 24 hours. Before a manufacturer can determine the number of pints per day, it must first test the dehumidifier.

This test is usually conducted in a room with a relative humidity of 60 percent and a temperature of 80 degrees Fahrenheit.

Can I Use a Dehumidifier When It’s Cold?

Whether or not you can use a dehumidifier in cooler indoor temperatures depends on the temperature itself. A typical dehumidifier is designed to shut off when the room gets colder than 65 degrees; some operate at lower temperatures.

Shutting itself down prevents ice from accumulating on the evaporator coils, which can cause the dehumidifier’s fan and compressor to malfunction. Most dehumidifiers have a fail-safe defrost cycle that kicks into gear, melting the ice before the ice causes a problem.

Best Mold Reducing Dehumidifier

Overall Recommended Dehumidifiers
Best of the Best! Best Seller For Small Rooms
Vremi 4,500 Sq. Ft. Dehumidifier hOmeLabs 3,000 Sq. Ft. Energy Star Dehumidifier Pro Breeze Electric Mini Dehumidifier
Vremi hOmeLabs Pro Breeze
 • 70 pint
 • 4,500 Sq. Ft.
 • 1.8 gal. Water Tank
 • 16.6 x 11 x 24.3 in
 • 41.6 lbs
 • 50 pint
 • 3,000 Sq. Ft.
 • 1.6 gal. Water Tank
 • 15.4 x 11 x 24.3 in
 • 40 lbs
 • 30 pint
 • 150 Sq. Ft.
 • 16 oz. Water Tank
 • 7 x 6 x 11 in
 • 2.4 lbs

Dehumidifier Guides on HouseholdMe
Best Dehumidifiers for the Bathroom
Best Dehumidifiers for Basements
Best Dehumidifiers for Mold

Other Related Resources
What Size Dehumidifier Do I Need to Buy?
Can a Dehumidifier get Rid of Mold?
What Is the Difference Between a Humidifier and a Dehumidifier?

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