How to permanently treat black mold in humid closet?« Back to Previous Page

Black mold in closets on interior walls is common in Dubai's humid climate, especially when AC units create a temperature differential that leads to condensation. Your wife's asthma flare-up is a significant indicator that this needs immediate attention.

For a small, surface-level area, you can treat it yourself. Wear an N95 mask and gloves. Scrub the affected wall with a mixture of detergent and water, then follow with a solution of one part white vinegar to one part water to inhibit regrowth. Let the area dry completely. However, this is often a temporary fix if the moisture source isn't addressed. The mold is likely growing due to a lack of air circulation. Leave the closet doors open and consider using a small, standalone dehumidifier or a desiccant like silica gel packets inside.

For a recurring or widespread problem, especially with health symptoms present, a professional inspection is strongly advised. The mold may have penetrated the drywall or insulation, which requires removal and replacement. A certified inspector can use a moisture meter to find the exact source of dampness—often a small plumbing leak or inadequate insulation on an exterior wall—and take air samples to identify the specific mold species. This lab analysis is crucial for determining the correct remediation protocol and ensuring it is safe for asthmatic individuals.

To prevent recurrence, ensure your AC is serviced regularly and set to a consistent temperature to minimize condensation. Verify that the room, and especially the closet, has adequate air flow; sometimes simply leaving the door ajar makes a significant difference.