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The 5 Best Attic Dehumidifiers (For 2023)

2 dehumidifiers on a wood floor with a background of a brick wall.

Is your attic used for storage or an active part of your home? Either way, when was the last time you inspected it for mold? Well, mold is a harmful fungal growth that can make life hard for your family members, especially allergy sufferers.

Fortunately, there are several solutions for mold infestation, with one of the most effective methods being a dehumidifier. The best attic dehumidifier can help keep the humidity level low while reducing the likelihood of mold growing in the house.

And from our roundup, we have concluded that a TOSOT 50 Pint with an internal pump dehumidifier is the best option available and is sold on Amazon. It is durable and comes with a pump that helps remove the collected water.

Key Takeaways for Best Attic Dehumidifiers

Use TOSOT 50 Pint with internal pump dehumidifier if you need:

  1. A silent dehumidifier.
  2. An attic dehumidifier with a huge capacity.
  3. One of the most durable units for your attic.
  4. To not empty its tank manually.

Use Keystone Electronic Control 50-pint dehumidifier if you need:

  1. A unit that can dehumidify an attic within the shortest time possible.
  2. A unit that you can easily move around the house
  3. To dehumidify an area of about 4,500 sq. ft.

A dehumidifier is a must-have for anyone living in a place with high humidity. Plus, even in summer, humidity is worse in the attic, so you need a suitable unit to keep mold away. If you don’t have time to empty the dehumidifier every time its tank gets filled, go for the TOSOT 50 Pint with an internal pump dehumidifier.

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The Best Attic Dehumidifiers Are:

#1: TOSOT 50 Pint with Internal Pump Dehumidifier – Best Attic Dehumidifier

Mold has terrorized homeowners for centuries, with allergy sufferers being forced to leave their homes. In fact, the summer months are the worst for most of us, but with TOSOT Dehumidifier that can be bought on Amazon, you will never have to worry about mold.

Like most of the best attic dehumidifiers, it is capable of taking up to 50 pints of water daily out of the air. A low humidity level makes the AC work more efficiently.

TOSOT Dehumidifier Best Feature

One thing that stands out is that its fan has three levels, which means you can decide how slow or fast it will dehumidify the attic. Every speed level produces varying noise levels. Fortunately, even at its highest speed, it produces about 52dB of noise, which is relatively low and you won’t even notice it.

Another reason why it stands out is the fact that it is UL-certified and Energy-Star-rated. Therefore, it’s not only effective when removing water, but it can also help lower your utility bill. Plus, their 30 years of experience in the industry makes TOSOT one of the most trusted brands available.

Some key features include:

  • An internal pump that can automatically empty the dehumidifier; therefore, you’ll never experience downtime because of a full bucket.
  • A real-time humidity monitoring system on its control panel. After selecting your target humidity level, it will display the current humidity level.
  • Plastic components that are made from solid ABS, so it is one of the most durable products on the market.
  • Internal lines are made from solid copper tubing for a better transfer of heat.
TOSOT Dehumidifier Specs
Capacity50 pints
Special featureManual

Pros of TOSOT Dehumidifier

  • durable
  • internal pump automatically removes water
  • has a huge capacity
  • removes up to 50 pints per day
  • displays the current humidity level

Cons of TOSOT Dehumidifier

  • humming noises not desirable to some

Overall rating: 4.5 out of 5

A dehumidifier with an orange cat sitting next to it.
A big home needs a high capacity dehumnidifier

#2: Keystone Electronic Controls 50-Pint High-Efficiency Dehumidifier – Best Value Attic Dehumidifier

Another dehumidifier with the same capacity as some of the best attic dehumidifiers in our list is the Keystone electronic dehumidifier, sold on Amazon. The Keystone dehumidifier is one of the few brands within its price range that can dehumidify about 50 pints of moisture in an area of approximately 4,500 sq. ft.

This dehumidifier is the right option for a huge house. It will guarantees good value for the money, especially because it can eliminate airborn:

  • bacteria
  • odor
  • moisture

Place it anywhere in the house and enjoy fresh, allergen-free air.

Keystone Electronic Dehumidifier Best Features

Besides its on and off buttons, anyone can control the fan speed using its three settings:

  • automatic defrost
  • turbo
  • normal

Its operational noise doesn’t exceed 50dB when using the normal settings. Unfortunately, the turbo mode can be pretty noisy at about 55dB, which is not ideal for night dehumidification.

Some key features include:

  • a bright LED touchscreen to control everything
  • a filled bucket change filter indicator that informs you when it’s time to empty, or use its continuous drain system
  • small wheels to easily move it around the house
Keystone Electronic DehumidifierSpecs
Water storage capacity6.25 gallons
Warranty4 years for the sealed system, 1 year for parts and labor

Pros of Keystone Electronic Dehumidifier

  • maneuverable
  • reliable
  • fast and precise
  • easy to use
  • easy to clean

Cons of Keystone Electronic Dehumidifier

  • the turbo mode is noisy

Overall rating: 4.4 out of 5

#3: Honeywell TP50WK Energy Star Dehumidifier – Easy to Carry

If you’re working with a tight budget and need one of the best attic dehumidifiers for a medium-sized home, then you should try the Honeywell TP50WK, sold on Amazon. Unlike the other options in our list, it has a small water-carrying capacity and is lighter so it is ideal for an attic. Unfortunately, it cannot dehumidify an area exceeding 3,000sq.ft.

Honeywell Energy Star Dehumidifier Best Features

Its unique anti-spill design makes it the best option to move around the house. Another reason why it is featured in our list of the best attic dehumidifiers is its state-of-the-art humidistat control system. Unlike most conventional options, it doesn’t require a human touch. It can easily detect the humidity level in the room and switch itself on or off as per the requirements.

Its digital and user-friendly display makes it one of the best-selling dehumidifiers on the market. It displays the humidity levels and is possible set the timer for several hours in a day. The LED display shows a clean filter and full tank indicator. Therefore, you’ll know when to wash the air filters or remove the bucket.

Other unique features:

  • unique anti-spill design with spill guards so spillage isn’t a concern when moving it
  • automatic water draining
  • gravity-fed drain instead of an internal pump
Honeywell Energy Star DehumidifierSpecs
Capacity30 pints
Floor area3000 Sq. Ft.
Weight34 pounds

Pros of Honeywell Energy Star Dehumidifier

  • convenient handles and caster wheels at the base for easy moving
  • a unique and rigid design helps it withstand about 150 pounds
  • affordable
  • lightweight

Cons of Honeywell Energy Star Dehumidifier

  • no internal pump

Overall rating: 4.2 out of 5

A small dehumidifier on a wood floor.
Small dehumidifiers are easy to move around

#4: hOmeLabs 1,500 Sq. Ft. Energy Star Dehumidifier – Most Versatile

hOmeLabs has produced some of the best attic dehumidifiers on the market, and this Energy Star Dehumidifier sold on Amazon is no exception. It is a unique unit that switches off when the tank is full. Thanks to its small size, it is also super easy to use and move around. This dehumidifier is ideal for large to medium rooms and can clear moisture effectively without leaving you with a huge energy bill.

hOmeLabs Energy Star Dehumidifier Best Features

Unlike most dehumidifiers, the hOmeLabs unit was designed with the users in mind. It features a clean and sleek look, with unique handles and built-in wheels to help it move around. It has a silent fan that won’t disrupt you while enjoying a favorite movie.

Generally, a dehumidifier doesn’t have to be complicated; it should be very easy to use. Well, that’s what you get with the hOmeLabs dehumidifier. To operate this dehumidifier, adjust it to your ideal settings and let it run for an entire day or until its tank is full. Remember, when full it will switch off automatically; therefore, it will do everything for you.

Some key features include:

  • a continuous draining outlet so it can stay running (the 5/8 diameter hose is not included)
  • built-in pump compressor that uses heat to reduce moisture within the shortest time possible
  • turbo mode that controls the fan speed and moisture absorption rate between 118 cubic feet to 135.
hOmeLabs Energy Star DehumidifierSpecs
Tank volume0.9 gallons
Capacity22 pints
Number of speeds135

Pros of hOmeLabs Energy Star Dehumidifier

  • easy to use
  • automatically shuts off when tank is full
  • turbo mode removes humidity at a very fast rate

Cons of hOmeLabs Energy Star Dehumidifier

  • turbo mode is noisy

Overall rating: 4.6 out of 5

#5: Waykar 2,000 Sq. Ft. Dehumidifier – Best Budget Dehumidifier

If you’re looking for a unit that can leave your attic and enter the house with a humidity between 45% and 55%, try the Waykar dehumidifier. Fitted with a unique wheel and reliable pull-up handle, this dehumidifier is one of the easiest units to move around. Despite its size, the Waykar dehumidifier can easily manage about 2,000 sq. ft. of space and can remove about 34 pints of moisture per day.

Another thing that stands out is the unique modern design that makes it easy to fit anywhere in the home. Plus, its silent fan is a win-win for light sleepers, so you will never have to worry about this dehumidifier waking up your kids.

Some unique features include:

  • manual and auto-draining systems, one of the easiest-to-use
  • 6.56 ft. hose to drain continuously
  • auto shut off with a “Full Tank” indicator for manual draining
  • washable and reusable filter
  • 30-day cash-back guarantee
  • 1-year warranty and lifetime tech support
Waykar DehumidifierSpecs
Capacity0.66 gallon

Pros of Waykar Dehumidifier

  • durable
  • easy to use
  • 30-day cash-back guarantee
  • manual and automatic draining systems
  • easy to move around

Cons of Waykar Dehumidifier

  • small capacity compared to other units on our list

Overall rating: 4.5 out of 5

Attic ceiling boards with black mold on them.
Mold grows quickly in damp attics

How Can I Lower the Humidity In My Attic?

When the humidity is high, mold tends to grow at a very fast rate posing a threat to the health of your loved ones. If left unchecked, then the high humidity level can damage your roof, so here are a few ways to get rid of humidity in the attic:

#1: Proper Attic Ventilation

In order to remain healthy and dry, an attic must be ventilated properly. Unfortunately, most attics are not well-ventilated. After all, every square inch of an attic should have access to the exhaust, and any part that isn’t ventilated will remain moist. The unventilated parts of the attic can become a breeding area for bacteria and mold.

#2: Fix The Attic Leaks

The second thing to consider when lowering the humidity level is to prevent water from leaking into the attic. Hire a roofing contractor and let them examine the roof and take care of the leakages.

#3: Keep Warm Air Out Of The Attic

Hot air can increase the humidity level of the attic, leaving it damp. Therefore, you should keep the home dry and cool all day long. Open the windows and use ceiling fans to lower the home’s temperature. For the 10 best portable air conditioners to keep your house cool, read my article here.

Factors To Consider When Purchasing The Best Attic Dehumidifier

High humidity levels can damage a home, thanks to the mold and bacteria growing in the attic. So you need the best attic dehumidifier to help lower the humidity levels in your home. With the many options available, picking the right option can take a lot of work.

Here are a few key things to consider when looking for the best attic dehumidifier on the market.

#1: The Capacity Of The Dehumidifier

When we’re talking about capacity, we are not talking about its physical size. We are talking about its ability to absorb moisture from a certain area in 24 hours. The most common capacities on the market in pints are:

  • 75
  • 50
  • 25

The higher the dehumidifier’s capacity, the more water it can extract in the same time period. Basically, the capacity is determined by the size of your attic or house. The bigger the house, the more capacity you need.

#2: The Dampness Level Of The Attic

The dampness of the attic also plays a vital role in the type of dehumidifier you pick. If it’s moderately damp, then a 25-pint dehumidifier works perfectly. On the other hand, a highly damp attic requires a 30-pint dehumidifier. Get a unit with the highest capacity if it’s extremely wet.

A ceiling leaking water inside.
A very damp attic needs a high capacity dehumidifier

#3: Dehumidifier Water Storage/Tank Size

In an extremely wet attic, the unit may have to run for more time, so consider the water removal system. Every dehumidifier has an internal storage tank. If it has a small daily capacity, be ready to empty the tank.

With a smaller tank, you may have to empty it a couple of times per day. Instead, look for a unit with a continuous drain feature.

NOTE: For a continuous drain feature, make sure you have access to the ground floor drain.

#4: Ease Of Cleaning the Dehumidifier

If the wateris left in the dehumidifier for a long time, it can create room for viruses and bacteria to grow. To avoid this, look for the best attic dehumidifier with a continuous drain feature. If you don’t have this feature, you will have to empty it as soon as it is filled, so make sure you get a unit that’s easy to clean.

#5: Attic Dehumidifier Noise

Another key feature to consider is the noise level produced by the dehumidifier. It might cost more for a silent unit, but dehumidifiers with high noise levels can disrupt your peace.

Our Last Thoughts

From our research, we have concluded that the TOSOT 50 Pint with Internal Pump Dehumidifier is the overall best attic dehumidifier. After all, it has the lowest noise levels so it’s the best option for light sleepers. It’s made from solid ABS; therefore, it is the most durable option available.

Another key reason it stands out is that it’s UL-certified and Energy-Star-rated; therefore, it can help keep your utility bills low.

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