Mold behind sofa causing cough: DIY or professional cleanup?« Back to Previous Page

That black mold behind your sofa, especially under an AC vent, is a serious concern and likely contributing to the coughing. In Dubai's high humidity, AC units often create condensation that soaks into walls, creating the perfect breeding ground for mold. The fuzzy texture suggests active growth.

For a patch smaller than one square meter, a thorough DIY cleanup is possible if no one is immunocompromised. Use a microfiber cloth and a solution of detergent and water, not just bleach. Bleach only surface-bleaches mold and doesn't kill the roots penetrating porous materials like drywall; it can also release harmful fumes in an enclosed space. After cleaning, the area must be completely dried with a dehumidifier or fan to prevent immediate regrowth.

However, the location is a red flag. Mold behind a wall-mounted sofa often means a larger hidden problem within the wall cavity itself, likely from a persistent condensation leak from the AC drain line or a poorly insulated duct. This is very common here. DIY efforts will only address the visible tip of the iceberg.

Given the child's respiratory symptoms and the high probability of concealed contamination, a professional inspection is strongly recommended. They use moisture meters and borescopes to see inside walls. Remediation often requires controlled removal of affected drywall and addressing the underlying moisture source—something best handled by a certified company to prevent spreading spores throughout your home. The goal is to fix the cause, not just clean the symptom.