Could our AC leak and black spots be toxic mold?« Back to Previous Page

Based on the symptoms you and your wife are experiencing—a persistent cough and headaches—coupled with the visible black spots and AC leak, there is a high probability that you are dealing with a mold infestation. The conditions you describe are a textbook scenario for mold growth common in Dubai's climate.

The constant high humidity, combined with condensation from air conditioning systems, creates an ideal environment for mold, particularly behind walls where a leak provides a constant moisture source. The black spots are highly suggestive of Stachybotrys chartarum (often called "black mold") or Aspergillus niger, both of which are known to produce mycotoxins and microbial volatile organic compounds (mVOCs) that can cause the exact respiratory and neurological symptoms you report. This is not an overreaction; prolonged exposure is a documented health concern.

In the UAE, property owners have a responsibility under Dubai Municipality health and safety regulations to address indoor environmental hazards, including fungal growth. Immediate action is required.

Do not attempt to clean this yourself. Disturbing the mold without proper containment can aerosolize the spores and drastically worsen indoor air quality and your exposure. This requires professional assessment and remediation.

I strongly recommend you contact a certified mold inspection company like Saniservice. Our experts use thermal imaging to identify the full extent of the moisture intrusion and air sampling to speciate the mold and determine spore count levels in your air. This data is critical for executing a proper remediation protocol, which includes containment, HEPA filtration, and antimicrobial application, all in compliance with local guidelines.

For a professional inspection and solution, please call Saniservice at 800-MOLDS (800-66537) or email hello@saniservice.com. Addressing the root cause of the leak is also essential to prevent recurrence.