Is the mold on my wall making me sick?« Back to Previous Page

The symptoms you're describing—stuffy nose and sore throat that improve when you're away—are classic signs of exposure to a microbial irritant in your sleeping environment. Given the AC leak and black spots, it is highly likely to be mold. Dubai's high humidity, especially in summer, creates ideal conditions for mold growth when combined with condensation from AC units.

The constant dampness from the leak provides the moisture mold needs to thrive on organic materials like drywall or dust. While not all mold is highly toxic, many common types found in homes (like Cladosporium or Aspergillus) are allergens and irritants that can cause the exact symptoms you're experiencing. For those with asthma or weakened immune systems, the reaction can be more severe.

You should address this promptly. First, move the wardrobe to fully assess the extent of the growth on the wall. For a small, contained area (less than one square meter), you can clean it yourself with a mixture of detergent and water, but ensure you wear an N95 mask and gloves to avoid inhalation and contact. However, since the source is a persistent AC leak, the problem will recur until that is fixed. A licensed AC technician must repair the leak to prevent future moisture intrusion.

For any growth larger than a square meter, or if it has spread inside the wall cavity (which is probable), a professional inspection and remediation are strongly recommended to prevent further spread and ensure it's handled safely. In such cases, a company with microbiological lab capabilities can identify the species, which helps assess the potential health risk and confirms the cleanup was effective. Ultimately, fixing the water source is the most critical step.