Are dehumidifiers good for colds?

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We can all agree, that if you suffer from seasonal allergies or cold symptoms, a humidifier or dehumidifier could help. But which one should you choose? In this post, I share research to answer the question, “Are dehumidifiers good for colds?

Colds, allergies, and nasal congestion are linked because they all induce the same symptoms: aches, headaches, sniffles, coughing fits, runny eyes, sore throat, and other bothersome symptoms.

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If you’re experiencing one of the symptoms listed above, you’re probably already taking allergy medication, antihistamines, or some form of OTC treatment.

However, many homeowners are unaware that there may be an alternative route for obtaining relief.

do dehumidifiers prevent allergies

What is the difference between a humidifier vs dehumidifier?


Dehumidifiers help in the removal of moisture from the air. If you live in a humid region or if your home has recently experienced a leak or flooding, this is very beneficial.

Excessively wet air can promote mold and dust mites to grow in your house, prompting allergic responses and exacerbating asthma symptoms.

Also, see … how long should a dehumidifier last?


Humidifiers are devices that discharge water vapor or steam into the air to increase humidity levels. Central humidifiers are one type of humidifier. These are integrated into household heating and cooling systems. Stand-alone humidifiers are also very popular options for raising humidity levels.

Benefits of using a dehumidifier

Mold and mildew can cause musty scents, which can be reduced by using a dehumidifier. Mold growth on furniture, drapes, bed sheets, and clothes can be minimized.

Dust is reduced by using a dehumidifier. Allergens such as dust mites, mold, and mildew can trigger allergies, and this gadget can assist to minimize them.

Are dehumidifiers good for colds?

Bronchitis symptoms and occurrences can be reduced with the use of a humidifier. Mold and germs that might cause bronchitis can be reduced by using a dehumidifier. Cold symptoms such as coughing and wheezing might be relieved with the use of a humidifier.

Do dehumidifiers clean air?

Contrary to popular belief, dehumidifiers do not actually clean the air. Dehumidifiers help maintain the humidity levels within your living space by removing excess moisture. However, they can indirectly clean the air by warding off mold, bacteria, and other particles from growing, all of which could lead to a variety of health issues.

Should I leave my dehumidifier on all the time?

No, the dehumidifier does not need to be on all of the time. When the humidity level is 50% or greater, it’s usually enough to run the unit. For most houses, a comfortable humidity level of 30-50 percent is a decent rule of thumb to remember.

Can a dehumidifier help with a stuffy nose?

Environmental allergens can cause a host of health issues. Some of the symptoms include:

  • Chest pain
  • Wheezing
  • Coughing
  • Sneezing
  • Eye irritation

Some of the more common allergy triggers include:

  • Mold and mildew
  • Dust mites
  • Pollen

Taking steps to dry out your home’s air helps to keep triggers to a minimum.

Dust mites, in particular, require a relative humidity level of 65 percent to survive and reproduce. That’s a humidity level that a dehumidifier can readily control.

Mold development is also controlled by dehumidifying the air. [1]