Is AC leak causing mold and health issues? How urgent?« Back to Previous Page

Yes, your AC leak is almost certainly causing mold growth and the associated health issues. The constant moisture from the leak, combined with Dubai's high humidity and the organic material in dust, creates a perfect breeding ground for mold. The black spots on the wall are a visible confirmation. Your wife's symptoms—morning headaches and congestion that clear up away from the room—are classic signs of mold exposure.

It is urgent to address this. Mold colonies can establish themselves and spread within wall cavities in a matter of weeks. You should sleep in another room immediately to eliminate the exposure and allow symptoms to subside. For the cleanup, do not attempt to scrub the visible spots yourself, as this can aerosolize spores and worsen the problem.

The required action is a professional inspection. A certified inspector will use moisture meters and borescopes to assess the extent of water damage and mold growth inside the wall, which is likely far greater than the surface spots indicate. They can also perform air and surface sampling to identify the mold species, which is critical for understanding the health risk and planning the correct remediation strategy, as some types are more problematic than others. The remediation process will involve stopping the AC leak at its source, properly drying the affected structure, and then removing the contaminated materials.