AC leak causing black speckles and health issues?« Back to Previous Page

The black speckles around your AC vent are almost certainly mold, and your symptoms are a classic reaction to its presence. Dubai's high humidity and constant AC use create perfect conditions for mold growth when condensation from a leak provides sustained moisture. The cough and congestion that clear when you leave the room strongly suggest the environment is the irritant.

For a minor, visible patch, you can carefully clean it with a diluted vinegar or hydrogen peroxide solution, but this only addresses the surface. The critical step is fixing the underlying AC leak; otherwise, the mold will return. Contact your building maintenance or an HVAC technician to resolve the condensation issue.

However, given the symptoms have persisted for months, a professional inspection is wise. Mold can grow deep within the AC unit or ductwork, far beyond what's visible. An expert can use moisture meters and borescopes to assess the full extent. The only way to confirm the mold type and its potential for more severe health effects is through lab analysis of a sample.

In Dubai, property owners have a responsibility under Decree 43 to maintain a healthy indoor environment. Document the issue and your communications with maintenance, as this can be important for ensuring the leak is properly remediated, not just the surface mold cleaned.