Skip to content

    Allergies Health Center

    Select An Article

    Will a Dehumidifier Help My Allergies?

    Font Size
    A
    A
    A

    Mold, mildew, and dust mites don’t have to make you miserable. A home dehumidifier can help you breathe again.

    How? It can dry out your air, which keeps things that set off allergy symptoms -- called triggers -- at bay. It can help you fight:

    Recommended Related to Allergies

    Regional Allergies

    Q: Atlanta is beautiful in the spring, but my allergies are so bad! Will moving to the desert make them go away? A: Ragweed and grass pollens are triggers that are difficult to avoid almost everywhere in the continental United States during the spring and summer. Although much of Arizona and New Mexico is arid, most people in the cities, suburbs, and small towns grow grass for lawns. Plus, the land has been disturbed by construction and landscaping, so weeds are widespread. Las Vegas, Tucson,...

    Read the Regional Allergies article > >

    Mold and mildew. They thrive in moist areas, like a damp basement or the cabinet under your kitchen sink. Molds reproduce through tiny spores that float through the air.

    Dust mites . They're the most common trigger of allergy and asthma symptoms, and they also love high humidity. They can live in bedding, curtains, and rugs, as well as the air in your home.

    If you’re sensitive to either one of these triggers, you might have:

    Signs Your House Is Humid

    • Wet stains on walls and ceilings
    • A stuffy feeling in a room
    • Rotting wood
    • Condensation on windows
    • Musty smells

    How Do You Pick a Dehumidifier?

    Check the "capacity rating" to see what size dehumidifier you need. The rating you want depends on the size and dampness of the room it’s for. The options include:

    • Small-capacity. These are portable and work for a small damp room.
    • Large capacity. They're also portable, and they can handle a large wet or damp room.
    • Whole-house dehumidifier. This is built into a home’s HVAC system. Try it for a small- or medium-size wet or damp house.

     

    How Much Do They Cost?

    It depends on their size and capacity, and whether they're portable or built into your home's ventilation system.

    • Small portable models can cost under $200.
    • A built-in system can run $1,500 to $2,000.

    WebMD Medical Reference

    Reviewed by Stanley M. Fineman, MD, MBA on October 24, 2014
    Next Article:

    Today on WebMD

    man blowing nose
    Make these tweaks to your diet, home, and lifestyle.
    Allergy capsule
    Breathe easier with these products.
     
    cat on couch
    Live in harmony with your cat or dog.
    Woman sneezing with tissue in meadow
    Which ones affect you?
     

    blowing nose
    Article
    woman with sore throat
    Article
     
    lone star tick
    Slideshow
    Woman blowing nose
    Slideshow
     

    Send yourself a link to download the app.

    Loading ...

    Please wait...

    This feature is temporarily unavailable. Please try again later.

    Thanks!

    Now check your email account on your mobile phone to download your new app.

    cat lying on shelf
    Article
    Allergy prick test
    VIDEO
     
    Man sneezing into tissue
    Assessment
    Woman holding feather duster up to face, twitching
    Quiz