Could mold in our AC be causing health issues?« Back to Previous Page

That damp smell and the black spots are classic signs of a mold problem, and your persistent stuffy noses and itchy eyes are very likely related. In Dubai's climate, with high humidity and year-round AC use, this is a common but serious issue. The AC unit itself often acts as both a source and a distributor of mold spores, blowing them throughout the room where they can settle and grow on cool, hidden surfaces like the wall behind furniture.

The condensation from your AC coil creates a constant source of moisture, and when combined with organic matter like dust, it creates an ideal environment for mold. The black spots are almost certainly mold growth, and the health symptoms you're both experiencing—nasal congestion and eye irritation—are the most common reactions to inhaling these spores. It's more significant than typical Dubai dust, which might cause some irritation but not usually the persistent, localized symptoms you describe when combined with a damp smell.

You should arrange for a professional inspection. A proper assessment involves more than a visual check; it should include air and surface sampling to identify the mold species and spore concentration in the air you're breathing. This is crucial because it determines the required scope of remediation. For a case like this, simply wiping the wall is insufficient. The AC unit will need a deep cleaning and sanitization by a certified technician, and the affected section of the wall will likely require professional remediation to prevent the colony from returning. Resolving the source of the moisture within the AC system is the most critical step for a long-term solution.