Is damp air from AC causing mold growth?« Back to Previous Page

After the heavy rain last month, I noticed a musty smell lingering in the corners of my bedroom. My kids have been complaining about constant coughing and sneezing, especially at night. The AC seems to be doing more than just cooling; it's also making the air feel damp and stuffy. Could this be due to mold? What can we do to prevent it from spreading and worsening our health?
Posted by Fang Zhou
Asked on January 2, 2026 6:51 pm
Is damp air from AC causing mold growth? Yes, it is indeed possible that the musty smell and the respiratory symptoms you're experiencing could be due to mold. In the UAE particularly during the heavy rain spell last month, humidity levels are likely higher which can create an environment conducive for mold growth. The AC system in your home might have picked up moisture from outside, leading to condensation inside the ducts or around the unit.

In Dubai and the UAE, there's no specific regulation mandating regular mold inspections but it’s highly recommended as you've noticed these symptoms. Mold can produce allergens that irritate the eyes, nose, throat, and lungs, which could explain your kids' coughing and sneezing. Long-term exposure might also increase the risk of respiratory problems.

To prevent mold from spreading and worsening health:

1. Inspect Your AC System: Call 800-MOLDS or email hello@saniservice.com for a professional inspection to ensure there are no water leaks or moisture build-up inside your air conditioning unit.

2. Improve Air Circulation: Regularly open windows if the weather permits, allowing fresh air into your home and reducing dampness. Ensure you have good ventilation in areas like bathrooms and kitchens where condensation is more likely to occur.

3. Dry Out Spaces Quickly: If there's been a water leak or spill, act quickly to dry out the area completely. Mold can start growing within 24-48 hours if moisture levels are not controlled.

4. Use Dehumidifiers: Especially in rooms where the humidity is consistently high like basements or near air conditioning units. Aim for indoor humidity between 30-50%.

5. Clean Ducts and Filters Regularly: Dirty filters can lead to a buildup of dust, pollen, and mold spores. Make sure to clean or replace them as per manufacturer’s instructions.

6. Seal Gaps in Your Home: Check your home for any gaps where moisture might enter from outside, such as around windows, doors, or pipes.

7. Keep an Eye on Humidity Levels: Use a hygrometer to monitor humidity levels within your home. In Dubai, it's common for the relative humidity to exceed 60%, which is quite high and can support mold growth.

Taking these steps should help in preventing further mold growth and improve indoor air quality, thereby reducing health issues like those experienced by your family. Remember, prevention is key!
Posted by Sani Admin
Answered on January 5, 2026 7:19 am