Best Dehumidifier for Attic – Your COMPLETE Guide

Best Dehumidifier for Attic – Your COMPLETE Guide

Best Dehumidifier for Attic

Have you ever noticed an increase of mold in your attic?

Or have you ever thought about knowing its cause and how harmful it can be for your health?

Well, if you haven’t done that till now, you need to be cautious and take necessary measures to save you and your loved ones from diseases; diseases that may not show up now but can become a serious problem in the future.


At a Glance: Our Top Picks of Dehumidifiers for an Attic

One of the major reasons behind mold growth in your attic is high humidity.

Some of the sources for high humidity are as follows:

  • Additional insulation which results in the condensation of moisture and increased humidity.
  • The heating source can be one of the reasons for having high humidity in your attic.
  • Roof Leaks that results in the penetration of outside moisture into the attic.
  • Poor ventilation is one of the reasons due to which warm, moist air gets trapped in your attic.

The best solution to get rid of the high humidity level in your attic is to install a dehumidifier.

It will decrease the level of humidity, thus reduces the chances of having mold in your attic.

But before you plan the installation of a dehumidifier, make sure to get rid of leaks and seek help from professionals to help you fix it.

Here we have given the list of best dehumidifiers that will help you maintain humidity and solve the problem of mold in your attic.

Best Dehumidifier for Attic

  • Massive coverage: Up to 4500 ft²
  • Efficient operation & low maintenance
  • Overall BEST for Attics
  • Coverage: Up to 3000 ft²
  • Easy-To-Read Water Level Indicator 
  • Auto shut-off features
  • Coverage: Up to 4500 ft²
  • Comes with built-in humidistat
  • Perfect for large rooms
  • Coverage: 1500 - 4500 ft²
  • Sleek, clean design
  • Best Seller
  • Coverage: Up to 2500 ft²
  • Comes with compatible WiFi remote
  • Amazon's Choice


#1 WAYKAR 70 Pint Dehumidifier

WAYKAR | 70 Pint Dehumidifier

  • Auto control humidity
  • Built-in universal wheels
  • Quiet
  • Instant child lock setting
  • Continuous water drainage mode
  • Easy to remove and wash filter
  • No Built-in pump

One of the best features that this unit has is its ability to maintain the humidity at a constant level. 

You can set the desired value and let the dehumidifier run until it reaches that level and keep it constant.

This unit comes with built-in universal wheels, and the handles are ergonomically designed to allow for 360° movement of the unit.

It runs very quietly as well; thus, it will never create any disturbance while you are working at home or sleeping during the night.

Another great feature is that one can press the lock button for 2 seconds to lock the dehumidifier. 

In this way, you don’t have to worry much about your children whom may damage the appliance or worse, get hurt themselves.

It also has continuous water drainage ability - simply connect the unit to the sink. No need to worry about constantly emptying the water tank anymore.

In addition, the air filter for this unit is easily removable and washable.

The only drawback that this unit has is there is not a built-in pump.

If you don’t have access to a floor-level water drain, then you will have to add an extra pump with it to drain the water inside the sink.

Other Great Dehumidifiers for Attics (Honorable Mentions)

#2 Keystone 50-Pint Dehumidifier

Keystone | High-Efficiency 50-Pint Dehumidifier

  • Customizable settings
  • Full Tank Alert
  • Auto shutoff feature
  • Touch Control and Notification Panel
  • High power consumption
  • No built-in pump available

Keystone's High-Efficiency dehumidifier is suitable for spaces measuring less than 3000 sq ft.

This unit can extract almost 50 pints of water in 24 hours and its settings allow you to set the dehumidifier at the desired humidity level.

Water collects in the water bucket during the working process, and when the bucket gets full, it gives an alert to shut off the dehumidifier. 

Thus, one can easily empty the bucket and turn it on again.

When the room reaches the desired humidity level, the dehumidifier automatically turns off.

It also gives the filter alert on the display panel when the cleaning of the filter is required.

One con is that this dehumidifier's power consumption is very high.

If you want to use the feature of auto drainage of water, you will have to attach a pump with it.

Moreover, it has no built-in pump which means you will need to empty the tank when it is full.

#3 Ivation Energy Star Dehumidifier

Ivation | Energy Star Dehumidifier

  • Covers large rooms
  • Adjustable speed settings
  • Humidistat
  • 4 casters
  • Easy to empty
  • Good capacity
  • It is a little expensive
  • It produces some noise

This dehumidifier from Ivation is able to dehumidify rooms as large as 4,500 sq. ft. and remove up to 50 pints of water per day.

It's a powerful dehumidifier that significantly prevents the creation of mold, dust, and several other allergens that can gather in an attic, while also being easy to operate.

The product’s tank can contain up to 1.3 gallons of water, meaning that you won’t need to constantly empty it in order for the device to work for longer spans of time.

In terms of emptying, the tank has a water level indicator, as well as two handles you can use to lift the water reservoir when you need to remove water.

Among the main features of this dehumidifier, we can find a humidistat that’ll let you know the specific level of humidity in the room, and a timer you can set if you want the device to work for only a certain amount of time.

Moreover, the settings include two different fan speeds, regular and turbo, and a safety auto shut-off option that allows the device to automatically turn off when the bucket is full of water.

The dehumidifier comes with a set of 4 casters, and, since it’s relatively light (it only weights 40 lbs), moving it from room to room won’t be difficult.

Although the price of the unit is a bit on the high side, maintenance costs aren’t too expensive, especially because the filter is washable and can be re-used.

The wash filter sensor will let you know exactly when it’s time to rinse the filter.

Last but not least, you should know that since this dehumidifier is a powerful one, it does produce some noise and it might bother you in the long run.

#4 hOmeLabs Energy Star Dehumidifier

hOmeLabs | Energy Star Dehumidifier

  • Customizable settings
  • Two years of warranty
  • Availability of continuous drainage mode
  • Noise-free
  • It maintains a healthy atmosphere with no bacteria
  • No automatic shutoff
  • Room size limitations

With the availability of touch controls and a display panel, one can easily set the humidity level of preference.

It has a high durability with two years of warranty.

There is no need to empty the water tank as one can easily connect the unit to sink and let the dehumidifier run on continuous water drainage mode.

Its fan is also very quiet, so you need not worry about the noise that it produces. It will never be disruptive.

This dehumidifier is very active in the removal of moistness, bad odor, and bacteria, which helps to maintain the healthy atmosphere inside the home as well.

It doesn’t have the function of automatic shutoff when the room reaches the desired level of humidity. So, one will have to turn it off himself.

One cannot use it for large rooms with an area greater than 1000 sq ft.

#5 Vacplus 50 Pint Dehumidifier

Vacplus | 50 Pint Dehumidifier

  • WIFI remote access
  • Energy Saving
  • Noise-free
  • Constant humidity feature
  • Control panel with LEDs
  • Two years warranty
  • No Built-in pump

Vacplus's 50 Pint Dehumidifier is an excellent unit that can be used via WiFi connection through the Tuyasmart app - so you don’t have to get out of your bed or couch to change the settings of the dehumidifier.

As compared to other dehumidifiers with the same features, this is comparatively cheap, and it doesn’t consume much power.

There is an additional feature that shows the current relative humidity with the help of three color LEDs.

If the relative humidity is less than 60%, the green LED turns on. Similarly, if it is above 80%, it turns on the red LED, and a yellow LED with relative humidity between 60-80%.

Like other dehumidifiers, you can set the dehumidifier to maintain a constant level of humidity.

Once the desired humidity level is maintained inside the room, the unit will automatically turn off.

It comes with two years warranty.

However, there is no built-in pump with this dehumidifier. So, to use the continuous drainage feature, you will have to install the additional pump.

So, here it is; our top 5 dehumidifiers that will extract moisture from your attic and maintain the humidity level as desired.

What to Consider When Buying the Best Dehumidifier for an Attic

a) Capacity of Dehumidifier

Best humidifier for attic

Here, we are not talking about the actual physical size of the dehumidifier.

Rather, capacity refers to a dehumidifiers ability to extract water from the area within 24 hours.

The most commonly used capacities are 25 pints, 50 pints and 75 pints (Pint being the commonly used measurement for volume or capacity). The higher the capacity, the more water that the unit can extract in the same amount of time.

The selection of the size of dehumidifier is dependent on the following factors:

  • The size of the attic for which you need a dehumidifier
  • Relative structural dampness (unwanted moisture in the structure of the building)
  • The temperature of the surroundings

One thing that you must keep in your mind is that testing of dehumidifiers is done in ideal conditions so they may work slower than what is shown in advertisements.

The selection of dehumidifiers with the exact capacity as required will save you from spending extra money on a large capacity dehumidifier.

So, we would advise you to choose a dehumidifier having more capacity than is required.

b) Dampness Level in the Attic

The dampness level in an attic is also an important factor while choosing the dehumidifier.

To make things easier, we have shown the four main dampness levels and the size (pints per 24 hours) of the dehumidifier that will be compatible with each of these conditions.

Dampness Lvl

Capacity (Pints per 24 hrs)

Moderately Damp


Highly Damp




Extremely Wet


Thus before selection, one must also make sure to observe the dampness level.

c) Tank Size / Water Storage 

If conditions inside the attic are extremely wet and you need to let the dehumidifier run for a longer period, then you must also consider the water removal from the dehumidifier.

Every dehumidifier comes with an internal water storage tank, but most of the designs have tanks with smaller daily capacity.

It means that you have to empty the tank once it gets filled.

If the tank size is much smaller, you may need to empty it two to three times a day.

To avoid this problem, we would recommend you to choose the unit having a continuous drain feature.

It will solve your worry to empty the tank, but for that, you will need to have access to floor-level water drain.

However, if you don’t have access to a floor-level water drain, you can still pump the water into the sink.

Most of the dehumidifier units come with an internal pump, but if your device doesn’t have the pump, you can buy and connect it with the dehumidifier unit.

Best Dehumidifier for Attic

d) Ease of Cleaning

As mentioned above, try to buy a dehumidifier having a continuous drain feature as it will solve the problem of emptying the tank containing the stagnant water.

If the water stays in the tank for a longer time, it may become the root cause of growing bacteria and viruses.

Moreover, if you don’t have access to a flow-level water drain, then you should take great care of emptying the tank.

Generally, choosing a unit that is easy to clean is the smarter choice. The selection of this type of unit will save both your time and effort.

e) Noise

You must also check the level of noise that a dehumidifier produces.

If one unit perfectly matches your requirements but is a nuisance, then you should start looking for another option.

Always pay attention to this factor before buying the product.

f) Other Factors

  • Dimensions: Before buying the dehumidifier, you need to keep into consideration the area where you intend to use it. Go for the unit which is not too bulky, easily movable and can efficiently work in that particular area.
  • Moisture Control: How quickly do you want your dehumidifier to remove the moisture from the room? There are units in the market with the “Turbo” function but on the flip side if you run the dehumidifier on this stronger mode, then it may consume more power in order to quickly remove moisture.
  • Ease of Use: Some dehumidifiers become a headache for a busy person. We would recommend you to choose the one with continuous drainage function and is not noisy. Otherwise, you will have to empty the tank every time, and the noise can cause a disturbance in sleep at night.

Bottom Line - Best Dehumidifier for Attic

Overall Best


Best for Medium to Large Rooms

Best Seller

Amazon's Choice


Waykar 70 Pint Dehumidifier

Keystone 50-Pint Dehumidifier

Ivation Energy Star Dehumidifier

hOmeLabs Energy Star Dehumidifier

Vacplus 50 Pint Dehumidifier


Coverage (ft²)






Capacity (Pints / Day)






Auto Shut-Off






Built-in Pump






By comparing the specifications of dehumidifiers and reviews of buyers, we have found the WAYKAR 70 pint dehumidifier to be the overall best dehumidifier for an attic.

Why this unit trumps all the others in this list and in the market? 

Well, with the built-in universal wheels, it allows you to move it easily around the house.

Furthermore, if you are a busy parent and you are worried about your child changing the settings of the unit, then you can easily tackle this problem by using the instant child lock settings.

This dehumidifier, having the ability to auto-control humidity at your desired value and the availability of continuous water drainage with no noise, will be the perfect buy for your attic.

We have done our best to clearly explain the pros and cons of these five best dehumidifiers, but still, the decision is yours!

If you didn't find a suitable dehumidifier for your attic, you are now in a much better position to decide on your own.

Of course, you are the only one who should greatly care while making decisions that involve your health and health of your family.