Could AC mold be causing our cough and stuffy nose?« Back to Previous Page

Based on your detailed description, it is highly probable that the microbial growth (mold) originating from your leaking AC unit is the direct cause of your persistent respiratory symptoms. The constant stuffy nose and dry cough, particularly pronounced in the mornings, are classic indicators of exposure to mold spores and microbial volatile organic compounds (mVOCs).

The situation you describe is a textbook case for Dubai's climate. The combination of high ambient humidity and a leaking AC system creates a perfect microenvironment for mold proliferation. The condensate drain line from your AC is likely clogged or damaged, causing water to seep into the wall cavity. The organic material in the dust and building materials, combined with the constant moisture, provides an ideal food source for mold colonies like Cladosporium, Penicillium, or, more concerningly, Aspergillus, which often presents as black spots.

Your building's age in Deira is a significant factor, as older systems are more prone to drainage issues and insulation breakdowns, leading to condensation within the ductwork and walls.

First, immediately stop using the bedroom AC unit to prevent further aerosolization of spores. Do not attempt to clean the black spots yourself, as improper agitation will release a high concentration of spores into your breathing zone, potentially worsening your symptoms and contaminating other areas.

This requires a professional assessment. Under UAE guidelines, a Certified Mold Inspector must conduct a thorough investigation, including moisture mapping with thermal imaging and borescope inspections of the wall cavity to determine the extent of the hidden infestation. Air and surface sampling will identify the specific mold genus and concentration, which is critical for determining the appropriate remediation protocol.

For a case like this, involving occupant health symptoms and a suspected concealed infestation, professional remediation by a company like Saniservice is not just recommended; it is essential. We are equipped to safely contain the area, remove contaminated materials, and sanitize the AC system and ductwork in compliance with Dubai Municipality's public health and environmental standards.

I strongly advise you to contact our team for an immediate inspection. Call 800-MOLDS (800-66537) or email hello@saniservice.com to schedule a diagnostic assessment. Addressing the root cause is crucial for restoring your indoor air quality and your health.