What is the ideal humidity level in my home to avoid winter allergens?

Dr. Mehmet Oz, MD
Cardiologist (Heart Specialist)

When the fastidious folks at NASA studied home air quality, they found that it was five times worse than the air outside. This is why the air in your home is your final allergy-proofing frontier.

The ideal humidity level for your home is between 30 and 50 percent to ward off winter allergens. If you use a humidifier to ease the irritating effect dry winter air can have on your nose and throat, be careful you aren’t unintentionally creating the ideal environment for the spread of allergens. Excess moisture in the air encourages the growth of both mold and dust mites. A $10 humidity monitor can help track the moisture level in your home.

This content originally appeared on doctoroz.com.


Continue Learning about Allergies



About one out of five Americans suffers from allergies. An allergy is an exaggerated response from the immune system to a substance such as dust, pollen, pet dander or mold. Other common triggers include foods such as peanuts and ...

milk; insect bites; and certain ingredients in cosmetics and jewelry. Allergies can cause anything from rashes and hives to itchy eyes, sneezing, coughing, diarrhea, vomiting, and wheezing.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.