The Best Dehumidifier for Allergies and Asthma

Last Updated on May 8, 2024 by Justin Williams

Allergies can make life miserable, especially when you're spending more time indoors. Does a dehumidifier help with allergies? The answer is yes! Dehumidifiers help to reduce allergens in the air, such as mold, dust mites, and mildew.

But what is best for allergies - a humidifier or a dehumidifier? A dehumidifier is the better choice for those with allergies, as it removes excess moisture and keeps the air at a healthy humidity level and preventing allergen growth.

In this article, we'll review the top five dehumidifiers for allergies and provide tips on how to choose the best one for your needs.

Let's dive in!

What is a Dehumidifier and Why Should We Use It?

Basically, a dehumidifier is a device that removes excess moisture from the air, helping to maintain a healthy humidity level in your home. Dehumidifier is divided into 3 main types: electric portable, desiccant, and whole-house units.

There's no doubt that a dehumidifier can be your best friend in hot and humid climates, but did you know that it can also help alleviate allergy symptoms? People with allergies and asthma are the most likely to benefit from using a dehumidifier.

When you have allergies, the symptoms can be caused by airborne allergens (mites, pollen, dust mites) or irritants such as smoke, dander and mold spores. Dampness is necessary for mold to grow, so a dehumidifier can help keep mold spores from growing and becoming airborne, as well as control dust mite populations.

Reviews of the Best Dehumidifier for Allergies and Asthma in 2024





Editor Ratings


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#1. Frigidaire FFAD5033W1 Dehumidifier (Best Dehumidifier for Mold Allergies)

Frigidaire FFAD5033W1 Dehumidifier review

We think you'll love the Frigidaire FFAD5033W1 dehumidifier. It's an amazing performer and one of the best 50 pint units we’ve tested in our moisture removal tests. We were impressed with its energy efficiency due to the high moisture removal rate, as well as its low compressor noise output and well-above-average build quality, making it a durable and reliable choice.

What we especially liked was its optimized refrigeration system, which automatically defrosts evaporator coils without the need for a separate energy inefficient defrost mode. However, the only downside is that it only comes with a 1-year warranty.

Its larger water tank capacity compared to its predecessor and no need for an adapter for gravity drainage make it an even better upgrade. We believe that this unit is one that will help you breathe easier and more comfortably in your home.

In summary, take advantage of the Frigidaire FFAD5033W1's excellent moisture removal capabilities, low noise output, and high durability for a long-lasting dehumidifier. Just keep in mind that it only comes with a 1-year warranty.

What We Liked

  • Energy Star certified for energy efficiency
  • Quiet operation
  • Digital controls and 24-hour timer
  • Washable and reusable filter

What We Didn't Like

  • Leakage issue
  • Only 1-year warranty
Our Ratings

#2. Honeywell TP70WKN Dehumidifier (Best Dehumidifier for Dust Mite Allergy)

Honeywell TP70AWKN Dehumidifier

We recently tested the Honeywell TP70WKN dehumidifier and we're here to help you figure out if it's right for you, especially if you have allergies.

Let's start with the advantages. The front humidity display is a unique and extremely helpful feature that allows you to monitor the humidity levels in your room. This is important for people with allergies because high humidity can create an environment for mold growth and dust mites. The built-in hygrometer is highly accurate, ensuring that the Honeywell is working effectively to decrease humidity levels and prevent allergens from proliferating.

Additionally, the included gravity drain hose makes it easy to continuously drain the unit without having to constantly empty the bucket, another important feature for those with allergies who want to keep their environment as clean as possible.

However, there are a few disadvantages to consider as well. The Honeywell TP70WKN is a bit louder than other 50-pint dehumidifiers we tested, which may be a problem for those with particularly sensitive allergies. Additionally, the control panel could have better labeling, making it a bit confusing to use at first. Lastly, the unit has an average bucket size, so you'll need to empty it more frequently than some other models.

Overall, we think that the Honeywell TP70WKN is a great choice for people with allergies. Its accuracy and effectiveness in removing moisture from the air make it a strong ally in the fight against mold and dust mites, while the included gravity drain hose takes the hassle out of maintenance. However, the louder buzzing noise and slightly confusing control panel may be a concern for some users.

Despite these limitations, the Honeywell TP70WKN still earns a solid rating from us based on its performance, extra features and functionality, and value.

What We Liked

  • Front humidity display
  • Highly accurate hygrometer
  • Included gravity drain hose
  • Effective in removing moisture

What We Didn't Like

  • Louder than other 50-pint units
  • Average bucket size
Our Ratings

TOSOT 50 Pint with Internal Pump 4,500 Sq Ft Dehumidifier Energy Star review

We've all experienced the unpleasant effects of allergies, particularly when it comes to airborne mold, dust mites, and pollen. These allergens can thrive in warm and damp environments, making it difficult to breathe and causing all sorts of uncomfortable symptoms. This is where the TOSOT 50 Pint Dehumidifier comes in handy.

The big plus of this dehumidifier is its solid build quality and super easy-to-use controls. It's capable of draining moisture up to 4,500 square feet of room space, which is more than enough to cover most living spaces. It also offers front drainage with a see-through indicator, supporting multiple drainage options with direct accessibility. Plus, it has full features including continuous mode, auto shut-off, auto-defrost, and on/off timer.

One downside, however, is that the unit is quite bulky and heavy for a 50-pint dehumidifier. This may make it difficult to move if you need to switch it to a different room or if you want to store it away when not in use. Additionally, on continuous use, it will generate quite a fair bit of condensation underneath the floor, which may cause damage in the long run.

Overall, the TOSOT 50 Pint Dehumidifier is an excellent choice for those who suffer from allergies. It helps to reduce common allergens in the air, making it easier to breathe and improving overall indoor air quality. The unit is easy to use, has all the essential features, and is Energy Star rated for reasonable power usage.

While it does have some downsides, such as its size and weight, these are minor in comparison to the benefits you'll experience. If you're looking for a reliable and affordable dehumidifier, the TOSOT 50 Pint Dehumidifier is certainly worth considering.

What We Liked

  • Solid build quality
  • Multiple drainage options
  • Large coverage area
  • Energy Star rated

What We Didn't Like

  • Generates condensation
  • Bulky and heavy
  • Only 1-year warranty
Our Ratings

MIDEA MAD50C1ZWS Dehumidifier review

Are you someone who suffers from allergies and wants to improve the air quality in your living space? Look no further than the MIDEA MAD50C1ZWS Dehumidifier.

One of the biggest pros of the MIDEA MAD50C1ZWS Dehumidifier is its ability to remove up to 50 pints of moisture per day. This excess moisture in the air can lead to mold growth and other allergens, making it difficult for people with allergies to breathe. By eliminating that moisture, you won’t have to deal with those issues anymore.

Another advantage of this dehumidifier is its maximum area coverage of up to 4,500 square feet. This makes it ideal for people who live in large homes or apartments. And, because it’s easy to maintain, you won’t have to worry about any additional stress or hassle when it comes to keeping your living space healthy and clean.

Now, let's talk about the cons. The size of this dehumidifier is quite large and heavy, which may make it difficult to move around if you need to reposition it. However, this is a small price to pay for its excellent performance and the benefits it provides to people with allergies.

In conclusion, if you want to improve the air quality in your living space and alleviate your allergies, the MIDEA MAD50C1ZWS Dehumidifier is an excellent choice. Its ability to remove excess moisture and large area coverage make it a powerful and reliable tool for anyone looking to breathe easier. While its size may be a slight inconvenience, the advantages far outweigh the disadvantages.

What We Liked

  • Removes up to 50 pints of moisture per day
  • Easy to maintain
  • Energy Star certified
  • Quiet operation

What We Didn't Like

  • Only 1-year warranty
  • Large and heavy
Our Ratings

BLACK+DECKER BDT50WTB Dehumidifier review

If you or someone in your household suffers from allergies or asthma, then you know how important it is to reduce moisture in your living spaces. That's where the BLACK DECKER BDT50WTB Dehumidifier comes in handy. We've tested a lot of dehumidifiers in the past, and this model is definitely one of the best.

One major advantage of the BDT50WTB is that it has a high moisture removal rate, which means it can effectively reduce the humidity levels in your home. High humidity can lead to mold and mildew growth, which can trigger allergic reactions and exacerbate asthma symptoms. By using this dehumidifier, you can help to prevent these issues from occurring.

Another strong point of the BDT50WTB is its low power draw, which makes it highly energy efficient. This is great for allergy sufferers because it means you can run the dehumidifier for longer periods of time without worrying about your energy bills skyrocketing. And the more you run it, the more allergens you'll be able to eliminate from the air. It also features a relatively high CFM fan and upward facing exhaust, which helps to mask compressor noise and gives it a pleasant sounding noise output.

However, it's important to note that the BDT50WTB has below average hygrometer accuracy, which could be problematic if you're trying to maintain a specific humidity level in your home. In addition, it's not very portable, so you'll need to find a permanent spot for it in your living space. Plus, its water collection bucket is just average-sized, so you'll need to empty it frequently if you have a lot of moisture in your home.

Overall, we think the BLACK DECKER BDT50WTB Dehumidifier is a great choice for people with allergies who need to reduce humidity levels in their homes. Its high moisture removal rate and energy efficiency make it a smart investment. However, its hygrometer accuracy and lack of portability are important factors to consider before making a purchase.

What We Liked

  • High moisture removal rate
  • Energy-efficient
  • Auto defrost
  • Low noise output

What We Didn't Like

  • Below average hygrometer accuracy
  • Average-sized water collection bucket
Our Ratings

Is a Dehumidifier Good for Allergies & Asthma?

Allergies can be quite debilitating, affecting daily life and causing discomfort. One of the main causes of allergies is the presence of indoor allergens, such as dust mites, mold, and pet dander. Fortunately, dehumidifiers can help alleviate the symptoms of allergies by reducing the moisture in the air and purifying it.

Dust mites are one of the most common causes of allergies, and they thrive in humid environments. By stabilizing the relative humidity at an optimum level of under 50%, dehumidifiers can significantly reduce dust mite infection. In fact, researchers found that allergen levels were ten times lower in homes that used a dehumidifier. This can make a significant difference for allergy sufferers, reducing symptoms such as a stuffy nose, itchy eyes or skin, wheezing, and coughing.

Dehumidifiers can also help reduce the risk of other allergies, such as those caused by exposure to irritants like grasses and pollen in the air. By capturing these particles in the filter, dehumidifiers fitted with a high-quality HEPA filter or a filter with an anti-bacterial coating can impact seasonal allergies.

Furthermore, dehumidifiers can help those with asthma by reducing the risk of dust mite infection and mold growth. High humidity can cause trouble breathing or shortness of breath, coughing, tightness in the chest, and wheezing, which could lead to potentially hazardous asthma attacks. Excessive moisture can also encourage mold growth, which can generate an allergic reaction and cause asthma attacks. By removing excess moisture from the air, dehumidifiers make breathing easier for everyone and reduce the risk of asthma attacks.

It's important to note that dehumidifiers may not be suitable for all allergy sufferers. Those with eczema, for example, may find that dry air with low humidity can make their symptoms worse. In these situations, a humidifier might be a better option to provide additional moisture to the air when needed.

However, for most allergy sufferers, dehumidifiers can be an excellent way to improve air quality and make their home a happier and healthier place to be.

How to Choose the Best Dehumidifier for Allergies

Based on your specific needs, there are several different types of dehumidifiers that can be used to help you breathe easier. Picking the best one will depend on where you plan to use it and how much space it has to cover.

Here are the criteria that you should consider when choosing the best dehumidifier for allergies and asthma:

  • Area coverage: If you live in a small home or apartment and only need to cover a small to medium-sized area, then a 50-pint portable dehumidifier might be the right choice for you. This type of device is small, lightweight, and can easily be moved around the house. They’re also the most affordable dehumidifiers on the market.
  • Energy efficiency: You want to be able to keep your costs down, which is why you should look for a dehumidifier with an Energy Star rating. This will ensure that the device does not consume too much electricity and cut into your monthly budget.
  • Washable filter: Not all dehumidifiers have washable filters, but if you choose one that does, then you'll be able to clean it easily. This means that the air will remain fresh for longer and that you won't need to replace the filter as often.
  • Continuous drainage option: It's also a good idea to buy a dehumidifier that can drain continuously. This will ensure that you won't have to empty the water tank manually.
  • Warranty: The best dehumidifier should have a warranty that lasts for at least 2 years. This way, you'll be able to get repairs or replacements in the event of any issues.
  • Price: Last but not least is the price. If you're on a budget, then you should look for a dehumidifier that is within your budget range.

Final Verdict

In conclusion, finding the best dehumidifier for allergies can be a daunting task. There are a few good brands to consider such as Honeywell, Frigidaire, TOSOT and more.

Furthermore, it's essential to consider various criteria such as size and energy efficiency before making your purchase. Remember that the best dehumidifier for you will be the one that matches your needs and fits within your budget.

Ultimately, with a little research and consideration of your home environment you can find the perfect dehumidifier to help reduce allergens in your home. With the right product in hand, you can rest assured that your allergies will have less of an impact on your life.

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My name is Justin Williams. I am the founder and blogger at (read more about us). I was an allergy sufferer and that is also the reason why I began my trek to finding the best dehumidifier for my own personal health issues. All of the dehumidifier top picks on the site were put through their paces by Lance Perez - our dehumidifier researcher. He put each one through a series of tests to see how well they performed. Then, our editorial team compiled the insights into articles and published them.

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