Does a Dehumidifier Help with Asthma & Allergies

Last Updated on June 4, 2024 by Justin Williams

You do not always need an air conditioner. Sometimes, all it takes to solve some problems in your home is a good dehumidifier. Air conditioners can easily run up your energy bill and still not get to the issues like asthma or allergies.

A good dehumidifier can step in, filter the air and make sure your allergy or asthma sufferers can live peacefully when at home. To find out how these devices contribute to the health of your family just take a few minutes to read our article.

It is filled with the information you need to know so that you can have a healthier home without the expense.

Does a Dehumidifier Help with Allergies & Asthma

"Will a dehumidifier help with allergies and asthma", you asked? The answer to this question is yes. It can actually help reduce allergy and asthma symtomps.

It is important for asthma and allergy sufferers to get a break from high humidity levels. Those high levels tend to foster bacterial and insect growth that help trigger those illnesses.

One way to lower those humidity levels is to purchase a top dehumidifier. The reason you buy a dehumidifier over an air conditioner is that the former device filters the air and keeps it clean. Air conditioners do not do that.

Here are the ways that a dehumidifier helps those suffering from asthma and allergies:

Remove Dust Mites

These pesky little creatures are hard to see but they can be a nasty trigger for those people who suffer from those ailments. Those dust mites like living in warm and humid environments and they prefer sleeping in your bedding, furniture and mattresses.

One way to get rid of dust mites is to lower the heat levels by removing moisture in the air. Once your home is a lot cooler, those dust mites go find another place to live.

The magic number to keep those dust mites from entering your room or home is 50%. Keep the humidity levels below that mark and you should find some relief when you suffer from asthma or allergies.

Reduces Mildew and Mold Growth

If you do not remove the dank, hot humid air from your home you are creating an excellent environment for mold and mildew to grow. These bacterial elements love hot moist rooms like your bathroom or laundry, attic or crawl spaces. But they are not limited to those rooms

Any room in your home that remains hot and moist with a humidity level in your home over 50% can see mold and mildew growth. A good dehumidifier with a built-in humidistat can help you control your humidity levels and make the room or your home safe from mold or mildew.

Just make sure to clean the filters regularly so that the dehumidifier can function at top levels throughout the day or evening.

Crawl Space Air - Hot Air Travels Up, not Down

That means if you do not dehumidify your crawl space you are creating an environment for dust mites, mold, mildew and other bacteria to grow and live.

Those elements can contaminate the air and cause trouble for allergy sufferers as well as for those people with asthma attacks. The hotter the air in your crawl space the faster it climbs up into the living quarters of your home.

The way to stop those elements from getting a foothold in your crawl space is to employ a top dehumidifier and keep the humidity levels in your home down below 50%. The cooler air doesn’t travel up and the dust mites, mold and other bacteria will find it too cool for their liking and move on.

Signs Your House is Too Humid

You may not know that you are living in a very humid house. It is a good thing that high humidity gives off signs telling you that you have a potential health problem on your hands. See the signs and take the appropriate action before it is too late.

Here are some of those signs that tell you that you need a dehumidifier in your home:

  • Wet stains on walls and ceilings
  • A stuffy feeling in the room or whole house
  • Wood paneling, framework or studs are starting to rot
  • A musty smell throughout the house or in your room
  • Condensation is appearing on your windows

final Thoughts

Protecting your family’s health should be a top priority for you. Yet you cannot do it alone and you will need some help. One of the ways to get that help is to install the right dehumidifier in your home.

The best dehumidifier helps remove excess moisture as a result of get rid of those allergy and asthma triggers so your family can enjoy their time in their rooms. The key is to make sure you get those humidity levels low enough so that mold spores and dust mites do not find it comfortable to build their homes in your house.

Installing dehumidifiers is one way to protect your family from harm.

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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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