Is our AC leak causing this stubborn cough and mold?« Back to Previous Page

Yes, the AC leak is very likely the cause of both the mold and your persistent cough. The constant moisture from the leak creates an ideal environment for mold growth within the wall cavity. When the AC unit operates, it then draws air through this contaminated space, blowing spores and microbial volatile organic compounds (mVOCs)—which cause that damp, earthy smell—into your living area.

This is a common issue in Dubai's climate, where high year-round humidity and constant AC use lead to significant condensation. The black specks are a clear visual indicator, and the cough that's worse in the mornings is a classic symptom of exposure to mold spores and dampness overnight.

The first step is to immediately stop the moisture source. Have a certified HVAC technician repair the AC leak and condensate drain line. Do not attempt to clean the visible specks yourself, as this can disturb a larger hidden colony. For a situation involving a wall cavity and health symptoms, a professional inspection is necessary. They will use tools like moisture meters and borescopes to assess the extent of the hidden damage inside the wall and can take air and surface samples for lab analysis to identify the mold type, which determines the appropriate remediation protocol. Addressing the hidden mold behind the wall is crucial to resolving the health symptoms and preventing structural damage.