Airborne Mold Health Effects: What Science Really Says

Mold releases tiny spores into the air, and when you breathe them in, your immune system may react. For many people, that reaction is mild, like sneezing, a runny nose, or itchy eyes. For others, especially those with asthma or allergies, symptoms can be more severe, including wheezing, chest tightness, and difficulty breathing.

Science does not show that mold causes chronic diseases in healthy adults from normal household exposure. However, long-term exposure to high levels of mold, such as in a water-damaged home, can increase the risk of respiratory problems. Infants, the elderly, and people with weakened immune systems are more vulnerable.

If you experience persistent coughing, wheezing, or shortness of breath that improves when you leave the house, mold could be a factor. See a doctor if symptoms are severe or if you have asthma that gets worse. A doctor can help you determine if mold is the trigger and recommend treatment.

Do not ignore symptoms, especially in children or older adults. If someone in your home has a weakened immune system, such as from chemotherapy or chronic illness, even small amounts of mold can pose a risk. Your doctor can advise on whether to avoid the area or seek further testing.

The right way to avoid health issues is to prevent mold from growing in the first place. Keep indoor humidity below 60 percent, fix leaks promptly, and ensure good ventilation in bathrooms and kitchens. In Frisco, with its humid subtropical climate with hot summers and spring hail and thunderstorms, you may face more moisture challenges.

After any water damage, dry the area within 24 to 48 hours to stop mold from taking hold. Use fans, dehumidifiers, and remove wet materials like carpet or drywall. If mold has already spread, local water damage pros can help with structural drying and dehumidification to restore a safe environment.