How to treat black mold from suspected AC leak?« Back to Previous Page

Black mold behind furniture, especially with damp walls, strongly suggests a hidden moisture source like an AC condensate drain leak or severe condensation buildup. This is a common issue in Dubai due to high humidity and year-round AC use.

For a small patch (under one square foot), you can clean it yourself. Wear an N95 mask and gloves. Scrub the area with a mixture of detergent and water. Do not use bleach, as it only removes the color and does not address the root cause. After cleaning, dry the area thoroughly with a fan. However, this is only a temporary fix if the moisture source remains.

The damp wall means the problem is behind the surface. You must identify and repair the leak—often a blocked or disconnected AC drain line—to prevent immediate regrowth. Mold will return within days or weeks otherwise.

Given the symptoms your children are experiencing, a professional inspection is strongly recommended. They use moisture meters and thermal imaging to find the exact source of the leak inside the wall cavity. For confirmed growth, a remediation protocol that includes containment and air scrubbing is necessary to prevent spores from spreading throughout your home during cleanup. A company with its own microbiology lab can also test the mold to identify the species, which helps assess potential risk and verifies that the remediation was successful through post-clearance testing.