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5 Best Dehumidifier for Attic (2022 Updated Reviews)

Have you recently noticed growth of mold in your attic? If you have, you should take some measures to protect you and your family’s health from diseases arising from high humidity in your attic.

Unfortunately, finding the best dehumidifier is daunting, especially for those who don’t know much about dehumidifiers. With my experience in testing home improvement products, I decided to try out several certified products on the market.

Our Pick of the Best Dehumidifier for Attic Space:

  1. hOmeLabs 70 Pint Dehumidifier (Editor's Choice)
  2. Waykar 70 Pint Dehumidifier
  3. Vacplus 50 Pints Dehumidifier
  4. Inofia 30 Pints Dehumidifier
  5. Aprilaire 1820 Pro Dehumidifier

If you are searching for the best dehumidifier for attic in 2022, read my review below. After tested several, I have found the following top products you can choose from.

The 5 Best Dehumidifier for Attic in 2022

1. hOmeLabs 70 Pint Dehumidifier

Key Features

  • Dimensions: 15.4 x 11 x 24.3″
  • Size: 70 Pint
  • Coverage: up to 4,500 Sq. Ft.
  • Capacity: 1.8 gal
  • Noise Level: Low
  • Warranty: 2 Years
  • Energy Certified: Yes

This unit from the hOmeLabs store is made to clear 50 pints of dampness from the air every day. It comes with a threaded hose that allows you to set it up for self-drainage; thus, you won't need to empty the tank regularly provided you avail a suitable drain nearby.

This huge dehumidifier's excellent construction enables it to monitor and clear wetness levels in areas that experience temperature fluctuations. A uniquely outstanding feature that I really like about this product is its multiple operation modes. You can easily set the preferred modes using the touch controls available alongside the display panel.

The continuous mode is highly recommended for really damp areas with a need for full-time water management. The comfort mode permits the system to switch target humidity to reflect the ambient space temperature. The manual mode, which is a great addition, allows you to select target levels of wetness and prompts the system to turn on or off until the conditions are met.

The fan on this dehumidifier is very quiet and not disruptive; I did not experience any sound problems. This makes it an excellent choice for use in the attic. Besides being quiet, the construction is user friendly and easy to move around.


  • Easily customizable
  • Long warranty
  • Very low noise
  • Continuous drainage
  • Maintains a healthy atmosphere
  • Sleek design


  • Does not shut off automatically


2. Waykar 70 Pint Dehumidifier

Key Features

  • Dimensions: 11.4 x 11.4 x 25.19”
  • Size: 70 Pint
  • Coverage: up to 4500 Sq. Ft
  • Capacity: 1.18 gal
  • Noise level: Low
  • Warranty: 2 years
  • Energy Certified: Yes

This great dehumidifier from Waykar can clear 70 pints (9 gallons) of water every day in spaces up to 4500 square feet. It adjusts humidity from 30 percent to 85 percent, making it perfect for use in attics of all sizes.

One of the outstanding features of this unit is that it can maintain the moistness at constant levels. It permits you to set your desired humidity values and let the system run until it attains that level and maintains it constant.

This unit features built-in superb universal wheels, and its handles are well constructed to permit 360 degrees movement of the machine – this qualifies the unit as the best portable dehumidifier.

The quiet fan has adjustable speeds for multiple choices and will not create disturbances while working from your attic or sleeping. This unit's unique feature is that it comes with a child lock system; you will not have to worry about your children damaging the unit or hurting themselves. All you have to do is press and activate the lock button for a few seconds to lock the unit.

This unit can drain water continuously; thus, eliminating the need to empty the water reservoir regularly. Just connect the unit to a drain, such as a sink.


  • Auto control capability
  • Efficient operation
  • Low maintenance
  • Built-in wheels
  • Continuous drainage mode
  • Noise-free
  • Easy to clean filter
  • Has child lock system


  • Does not have a built-in pump


3. Vacplus 50 Pints Dehumidifier

Key Features

  • Dimensions: 23.5 x 15.4 x 11.5”
  • Size: 50 Pint
  • Coverage: up to 1900 Sq. Ft
  • Capacity: 1.3 gal
  • Noise level: Low
  • Warranty: 2 years
  • Energy Certified: Yes

This dehumidifier has a sleek make that is easily movable thanks to the fantastic wheels. The wheel make permits a 360-degree movement angle; thus, moving from one room to another is convenient.

If you are the type who uses the attic for other purposes such as drying, this dehumidifier is your best friend – this makes it the best multipurpose unit. If you live alone and do not wish to have the unit running until you get back, you can utilize the timing boot and timing shutdown feature. As well, you will not have to get out of the bed to adjust the settings as this is taken care of by the Wi-Fi connection feature thanks to the Tuyasmart app.

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Another great benefit of this dehumidifier is that it comes at a low price compared to other models. Using it is not expensive either because it consumes less power.

The three-color LEDs will help you to discern the current relative humidity. When moistness levels are below 60 percent, the green LED activates. If the relative humidity stands at above 80 percent, the red LED turns on. When humidity is between 60-80 percent, the yellow LED is activated.

The dehumidifier also permits setting and maintaining constant dampness levels – once the set humidity level is attained, the unit turns off automatically.


  • Lightweight
  • Wi-Fi remote access
  • Has drying-clothes mode
  • Constant humidity feature
  • Portable
  • Control panel with excellent LEDs
  • Energy saving
  • Quiet


  • Emits heat
  • No built-in pump


4. Inofia 30 Pints Dehumidifier

Key Features

  • Dimensions: 12.2 x 8.2 x 17.3”
  • Size: 30 Pint
  • Coverage: up to   1050 Ft.
  • Capacity: 0.5 Gallon
  • Noise Level: Low
  • Warranty: 2 years
  • Energy Certified: Yes

This unit made by Inofia is capable of removing 4 gallons of water every day. This product comes with many features, including a timer, speed, etc. all at a low price; hence it is the best budget dehumidifier.

This dehumidifier permits you to set preferred air humidity values and leave the unit to do its job. It stops automatically whenever the desired wetness level is attained and resumes operation once water levels increase again.

It is a low-sounding product that will work to clear dampness in your attic without creating any disturbances regardless of the room size.


  • Reliably Powerful
  • Sufficient water storage
  • Sleek design and look.
  • Long-lasting


  • Small water bucket


5. Aprilaire 1820 Pro Dehumidifier - Best For Whole House

Key Features

  • Dimensions: 25 x 12.5 x 12.5”
  • Size: 70 Pint
  • Coverage: up to 2,800 ft.
  • Capacity: Not applicable
  • Noise Level: Low
  • Warranty: 2 years
  • Energy Certified: Yes

The Aprilaire 1820 Dehumidifier connects perfectly to your home's HVAC unit to provide excellent dampness management for your space. It suits places such as a sealed crawl area or basement and clears up to 70 pints of water every day. It comes with a control panel mounted on the front side of the dehumidifier for easy access. Set-up and use are made easy by the simple to use display.

This dehumidifier is one that will last as it is made using corrosion-free aluminum coils. It maintains humidity values in the room air below 60 percent hence reducing the survival rates for airborne viruses.

The best thing about this dehumidifier is that it does not have any messy trays to empty regularly; thus, it is low maintenance equipment.


  • Good warranty
  • Easy to set up and use
  • Sleek look
  • Durable


  • A bit noisy
  • It is not compatible with 50 Hz power sources.


Here are sources for high humidity as follows:

Additional insulation – additional padding in your home causes condensation of wetness and consequentially increased humidity levels.

The heating sources – having heating sources around qualifies as one of the possible reasons for high water levels.

Roof Leaks – the presence of leaks in your roofs allows outside wetness to penetrate into the attic, increasing attic humidity values.

Poor ventilation – having poor ventilation is a cause for humidity problems because warm and moist air penetrates into your attic.

How to choose the best dehumidifier for an attic?

Finding the best dehumidifier for an attic is undoubtedly challenging. As such, you should consider several factors before making a purchase. Below are some things to consider before buying a dehumidifier.

Capacity - Extraction Moisture Per Day and tank

Here we are not referring to the dehumidifier’s actual physical size, but rather the ability to absorb dampness from an area within 24 hours. The higher the capacity rating, the more water that the product can extract in a particular amount of time.

The most popular capacities are 30, 50, and 70 pints. The pint is the most commonly used volume measurement unit of the water tank. Dehumidifiers that remove 25 or less pints a day are small size and are best suited to be used in spaces measuring a couple of hundred square feet, such as a bathroom or bedroom.

Dehumidifiers that extract 30-50 pints a day are mid-size and can handle spaces of up to 2000 square feet. They are more versatile for utilization at homes. Make sure to choose products with 70 or more pints a day, as they are more robust and are suitable for use in spaces measuring 4000 square feet or more.

The choice of the dehumidifier ability is dictated by:

The size of the attic

  • Relative structural dampness
  • The surrounding temperature

Moisture level in attic

This makes another essential factor to consider when selecting a dehumidifier. The table below shows the dampness levels versus the compatible dehumidifier capacity.

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Dampness Level Capacity (Pints per day)
Moderately damp 30
Highly damp 50
Wet 70

The level of dampness removal is a factor to consider. There are options available in the market that have more robust operation modes, but then they may consume more power to support the quick water removal from the attic.

Easy to clean

Keeping water in the tank for a long time encourages the growth of bacteria and viruses. Therefore, it is advisable to purchase one that has a continuous drain feature.

In general, make sure that you buy a dehumidifier that is easy to clean. This will spare your time and effort hugely.


It is essential to pay attention to the sound levels that emanates from the dehumidifier. You should pick one that will not become a nuisance in your space.


The physical size of your dehumidifier is also something to look into when shopping around. The area in which you intend to use your unit will dictate this. We recommend that you pick one that is not too bulky, is portable, and can reliably work in that particular sized attic. Check the water tank for a better idea.


Similar to any other items, buying one with a good warranty will eliminate unnecessary worries.

Benefits of attic dehumidifiers

Dehumidifiers are the most excellent way to eliminate excess water from your space and avoid problems brought about by high levels of humidity. These issues are:

  • Molds and moldy smells
  • Uncomfortable conditions
  • Window condensations
  • Damages to structures and rough floorboards

Failure to deal with the above issues results in:

  • Allergic reactions
  • Respiratory issues
  • Other health concerns


Where to Place a Dehumidifier in an Attic?

The positioning of a dehumidifier in an attic is similar to any other space or room. Usually, it is placed in a central position to ensure even humidification of the room. If it is difficult to put one centrally, place it at least 6 inches off the walls or objects that tamper with airflow.

Can I put a dehumidifier in the attic?

Yes. You can put a dehumidifier in the attic if you are experiencing issues with high humidity levels; in just the same way that you place a dehumidifier in any other room. The dehumidifier will help lower the humidity values.

What size dehumidifier do I need for attic?

It is essential to consider the size of your dehumidifier to ensure that it works well for your attic. Finding the ideal size for your dehumidifier relies on the size of your attic and your preferred humidity figures.

How do you get the moisture out of your attic?

The best way of removing dampness in your attic is by using a dehumidifier. A well-selected dehumidifier should lower the water levels in your attic and restore comfort.

What should the humidity be in the attic?

In an ideal situation, the humidity levels should be somewhere between 35 and 50 percent. If the humidity is above 50 percent, then you are likely to experience problems that come with high humidity.

Is My Attic Too Humid?

If you are unsure whether your attic has a problem of high humidity levels, you can verify this using a hygrometer – devices that measure humidity levels. The presence of moulds is another indication of a high water level.


To wrap it up, purchasing the best dehumidifier for attic is an excellent idea if you are experiencing problems with high humidity levels in your attic. It would be best if you were precise about what you are looking for in a dehumidifier. Obviously, you will need to consider the size of your space and the humidity levels that you need to deal with.

Hopefully, this article helps you make an informed decision when shopping around for the best dehumidifier. The above attic dehumidifier reviews outlines durable and impressive options.

So why not get one of them now? I would suggest that you go for the hOmeLabs dehumidifier due to the reliably continuous draining and the excellent warranty.

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