5 Best Dehumidifiers For Attic Expert Review

  • Author: Irene Batres
  • Date: September 26, 2022
  • Time to read: 9 min.
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It’s not uncommon for an attic to have a high humidity level.

In fact, research has shown that the average relative humidity in attics is between 55% and 65%.

This can be detrimental to your home because it can lead to mold growth and a variety of other problems.

So what are some of the best dehumidifiers for your attic?

We did the hard work, so you don’t have to.

5 Best Dehumidifiers For Attic In The Summer

Below, we list the five best dehumidifiers for your attic.

We will look at the pros and cons of each product and why we selected it as one of the best.

We will also go over some tips for choosing the perfect product for your needs.

These dehumidifiers are:

Let’s get to it:

1. Frigidaire, White 35-Pint Dehumidifier (Our Top Pick)

Quick Facts

  • It comes with effortless humidity control
  • Weighs 40 pounds
  • Portable
  • Washable filter

The Frigidaire 35-Pint dehumidifier is among the most reliable options on the market. It is also one of the most affordable models.

This dehumidifier does not come with a full set up kit, but it has an easy-to-use design and convenient features that make up for this detail (we’ll cover these in more depth later).

This device makes the top of our list because of its ability to collect a lot of moisture.

It can remove as much as 35 pints per day at an affordable price, making it perfect for homes with large spaces or many rooms that need dehumidifying.

With this product, you won’t need to worry about dampness, bad odors, or mildew.

It also has an effortless humidity control that makes it simple to set the desired level, so you can be sure your home is at the right temperature and comfortable for everyone in your family.


  • Removes up to 35 pints daily
  • Convenient design and features make this set easy to use
  • It comes with effortless humidity control
  • Washable filter
  • Easy access bucket


  • No full setup kit comes included in the purchase (must be purchased separately)

2. Kesnos 3500 Sq. Ft Dehumidifier for Home and Basements (Runner Up)

Quick Facts

  • 3500 Sq. Ft dehumidifier
  • Auto shutoff
  • Manual and continuous drainage
  • 50-pint dehumidifier

If you are looking for something a little more powerful than the Frigidaire, then the Kensnos Dehumidifier is for you.

It’s a 50-pint dehumidifier that can remove up to 3500 sq ft of moisture every 24 hours.

This product has an auto-shutoff, which means it will turn off automatically when the desired humidity level is reached or exceeded, so you don’t have to worry about coming home and finding your device turned on while no one was around (this feature makes it perfect for unattended drying).

It also comes with manual and continuous drainage options if you need something other than automatic water removal from your basement or attic.

This ensures that there are multiple ways to get rid of the excess humidity without manually draining the tank yourself.


  • Great for larger homes
  • Unique design that fits the modern home
  • Easy operation
  • Intelligent control


  • The filter can be difficult to clean.

3. Letsport Upgraded 68oz Dehumidifier (Cheapest)

Quick Facts

  • Works perfectly in up to 480 sq. ft
  • Electric mini dehumidifier, perfect for attic
  • Upgraded dehumidification features

The Letsport dehumidifier stands out from the rest of this list because of its upgraded features.

It is an electric mini dehumidifier that works perfectly in up to 480 sq ft of space, making it perfect for small attics or medium-sized rooms (especially those with a lot of electronics).

It’s also worth noting that this unit comes with upgraded dehumidification features and has three different levels, so you can dial the device down depending on your needs.

This makes it one of the best options for people who want more than just basic humidity control from their products.

The device has an auto-shutoff feature, so you can keep it on for hours or days without worry.

It also has a low voltage mode, so the device can last longer and save energy, which is great if you plan to use this dehumidifier in your home year-round.


  • Works well in 480 sq ft of space
  • Upgraded features make this one of the best options available today
  • Automatic shut off feature perfect for unattended drying
  • Low voltage mode saves time and electricity when left plugged in all day/night
  • It comes with two years warranty on manufacturer defects
  • Features three settings to customize the desired level of moisture removal


  • Not suitable for larger homes

4. Honeywell, White TP50WK Energy Star Dehumidifier up to 3000 Square Feet

Quick Facts

  • 30-pint dehumidifier
  • Anti-spill design
  • Filter change alert
  • Energy Star qualified
  • Suitable for rooms up to 3000Sq. Ft

The Honeywell Energy Star dehumidifier is a 30-pint dehumidifier and is good for rooms up to 3000 square feet.

It has an anti-spill design, which means it will automatically shut off if the tank becomes overfilled or if you accidentally spill water on top of the machine.

It also comes with a filter change alert, so you know when your time comes to replace filters (every six months), as well as an energy star qualification.

This makes it one of the most efficient, eco-friendly options available today that still offers plenty of power where needed in large living spaces such as basements or medium-sized attics

This device will be a great choice if you are looking for a 30-pint dehumidifier with an anti-spill feature.

This is perfect if you want to ensure your machine won’t be damaged in case of accidental spills or overfills, which can often happen when it comes to humidifiers and dehumidifiers filled with water.


  • Great for larger homes
  • The Anti-spill feature is perfect for unattended drying/emptying tanks while away from home
  • Filter change alert alerts you to when it’s time for a new filter
  • Energy Star qualified means this is one of the most efficient options available today


  • Relatively more expensive than other products on this list

5. Ivation 19 Pint Small-Area Desiccant Dehumidifier Compact and Quiet

Quick Facts

  • Quiet dehumidifier
  • Continuous drainage hose perfect for smaller spaces
  • Great for space up to 410Sq. Ft
  • 19-pint desiccant
  • Multiple drainage options
  • LCD
  • Versatile performance
  • Lightweight but powerful

This is among those small but powerful options perfect for small spaces like attics and tight budgets.

It’s a 19-pint desiccant dehumidifier, great for small spaces like attics or even smaller living spaces such as basements. This device has a continuous drainage hose that’s perfect for those tight places where it can be difficult to empty the tank yourself.

This product also has an LCD and different drainage options so you can keep your machine running at all times without having to worry about emptying the water manually.


  • Great for small spaces (like attics/basements)
  • Quiet operation makes this suitable in bedrooms too
  • The LCD lets you see how much moisture is being removed from the room
  • Different draining options allows you to choose what works best for your space


  • Quite pricey for a 19-pint dehumidifier

How To Choose A Dehumidifier For An Attic

There are a few factors you need to consider when shopping for a dehumidifier for your attic. They include the following, among others:

Power Consumption

You want to get a dehumidifier that will not suck up too much power. Some models are more power-efficient than others. Be sure to look at the power consumption of the model you’re considering.

Size of The Dehumidifier

Get a unit that is appropriate for your space. A small, single-room attic might not need a 50-pint model. At the same time, an entire house could benefit from one, especially in basements and other less accessible areas where humidity levels tend to be higher.

Noise Level of The Dehumidifier

You want to make sure that you can sleep through the night if your unit is in a bedroom. Some models are quieter than others, so be mindful about what features and noise levels might work best for you.


A good dehumidifier should be able to withstand the elements while still running efficiently. Be sure to get one that is designed for durability and ease of use.


All units come with some sort of warranty, but it’s important to note the length of coverage for each model you’re considering so you know what kind of peace of mind accompanies your investment in this product.


This is another factor to consider when shopping for a dehumidifier. Get one that is easy to use and does not require too much maintenance or upkeep on your part so you can enjoy all of the benefits without any hassle.


The capacity of the dehumidifier is another factor to consider. If you have a large space, you will need to get a more powerful dehumidifier. If your attic is small and has fewer humidity problems, then the smaller units would be sufficient for your needs.

Ease Of cleaning

How easily a dehumidifier can be cleaned is also an important factor to consider. Most units have a removable container that you can take outside and empty, while others require special cleaning solutions.


The price of the dehumidifier is also something to consider before making your purchase. You don’t want to get the cheapest unit on the market.

Still, you don’t want to spend an arm and a leg either. You’ll want to get the best bang for your buck without overspending unnecessarily.

The cost of a dehumidifier varies from model to model, but you can find some that are very reasonably priced while still getting great quality.


What should the humidity be in an Attic?

In the heating season, the humidity in your attic should be between 40% and 50%. This will help prevent damage to your houses like plaster cracks, mold growth, and wood rot.

In the cooling season, you want humidity levels in your attic at about 60%, so it helps keep cool air from escaping into the outside environment.

It is, however, recommended that you use a dehumidifier to help maintain the appropriate humidity levels in your attic.

Will a Dehumidifier Cool An Attic?

Yes. A dehumidifier can cool down attic spaces by as much as 20 degrees Fahrenheit. This happens because it gets rid of moisture, which is a heat-trapping agent.

Another way the cooling effect comes is from the dehumidifier’s fan. The fan cools down by blowing air over a cold coil, which then blows out cooler air.

How To Drain Dehumidifier In An Attic

To drain a dehumidifier in the attic, you will need to get a bucket and plug the sink. You can then attach the hose or pipe from your dehumidifier to the faucet to drain it into your container of choice.

You can also disconnect the hose from your dehumidifier and place it in a container of choice. Better still, you can attach the hose to an outdoor spigot and drain it there.

Sign of Moisture In The Attic

The signs of moisture in the attic include mold, mildew, and rotting wood. There can also be signs of leaks or soggy insulation. If you notice any of these signs, you should have your attic checked for moisture.

What Size Is Good For The Attic?

The size you buy will depend on how much humidity there is, but most units have capacities ranging between 40-50 pints per day or even more for larger spaces.

How Often To Clean A Dehumidifier?

To keep your unit running efficiently, make sure to deep clean it once every two weeks by emptying the water tank and wiping down all surfaces inside the machine with soap and warm water.


Hopefully, this article has provided you with some information about the best dehumidifiers for your attic. We compiled our list of the top five based on features, price, and overall quality.

The next time you are going shopping for a dehumidifier for your attic, use our tips to narrow down your search.

However, we recommend getting the Frigidaire Dehumidifier.

While this product is not the cheapest, it is still affordable while providing great quality. It is also very easy to clean and has a capacity of 35 pints per day.

Looking For Dehumidifer Guides?

If you’re looking for more dehumidifier resources, consider checking out our other post on Dehumidifiers.

irene mills author of freshairdevices


Irene Batres is eager to help others create an indoor allergen-free home. She has years of experience testing out air purifiers, dehumidifiers, and other products designed to help with indoor air quality. Learn more about me.