Can mold in our AC cause my husband's persistent cough?« Back to Previous Page

The AC in our Jumeirah villa has been leaking a little into the carpeted bedroom closet for a while, and now I’ve found a patch of black mold on the wall behind the clothes. My husband has had a constant stuffy nose and a cough that won't go away for over a month. Could this mold be the reason for his symptoms and how dangerous is it to just clean it ourselves?
Posted by Jessica Scott
Asked on April 12, 2026 4:25 am
Yes, the mold in your AC is very likely contributing to your husband's persistent cough and stuffy nose. In Dubai's climate, where AC runs year-round, these systems can become reservoirs for mold if not properly maintained. The constant moisture from a leaking unit creates ideal conditions for mold growth. When the AC operates, it can aerosolize these spores and mycotoxins, distributing them throughout your bedroom air where they are inhaled, often causing respiratory irritation that mirrors allergy or cold symptoms.

Cleaning visible black mold yourself is not recommended, especially given the proximity to your AC system and the ongoing moisture issue. Disturbing it without proper containment can release a large concentration of spores, potentially worsening your husband's symptoms and contaminating other areas. For a situation involving a leak into a building structure like a wall and carpet, a professional inspection is advised to assess the full extent of the hidden damage behind the wall and under the carpet pad.

The process involves first identifying and repairing the AC condensate leak—this is the critical first step to prevent recurrence. The mold itself should be contained, the affected building materials assessed, and the air tested to identify the spore types and concentrations. This diagnostic approach, often involving a microbiology lab, is key to understanding the health risk and planning an effective remediation strategy, rather than just cleaning the surface. For health symptoms that persist, it is always best to also consult a medical professional.
Posted by Sani Admin
Answered on April 12, 2026 3:55 pm