AC mold causing child's stuffy nose; DIY or professional?« Back to Previous Page

The black mold on your wall is very likely connected to your child's stuffy nose. This is a classic symptom of mold exposure, especially in a humid climate like Dubai's where AC units run year-round and condensation leaks create ideal breeding grounds for mold. The persistent moisture from the leak means the visible patch is likely just the surface of a larger problem inside the wall cavity.

Do not use bleach. It is ineffective on porous surfaces like drywall and can release harmful fumes in an enclosed space. For a small, surface-level patch, a mix of detergent and water can sometimes suffice, but your situation involves a long-term leak, which suggests deeper contamination.

Given the health symptom and the hidden nature of the moisture damage, a professional inspection is strongly recommended. They will use moisture meters and borescopes to assess the wall's interior. Remediation involves fixing the AC leak first, then properly containing and removing the affected drywall and insulation to prevent spores from spreading throughout your home. The cost for a single room is typically a manageable investment for peace of mind and health, but you should request an on-site assessment for an accurate scope and quote. The priority is stopping the source and ensuring the hidden mold is completely addressed.