How to safely remove black mold and prevent humidity?« Back to Previous Page

We've lived here for 2 years and just noticed a patch of black mold in the corner of our master bedroom closet, which is on an interior wall. It's been really humid lately and I'm worried it's spreading behind the clothes. What's the most effective way to clean this safely and what can I do to stop the humidity from causing it again, especially in such a tight, airless space?
Posted by Emily Martinez
Asked on May 8, 2026 10:35 am
Black mold in a closet on an interior wall is a classic sign of high humidity and condensation, a very common issue in Dubai. The first step is to identify and address the moisture source. Since it's an interior wall, check for a potential plumbing leak from an adjacent bathroom. If no leak is found, the humidity is likely condensing on the cooler wall surface.

For a small patch (under one square meter), you can clean it yourself safely. Wear an N95 mask, gloves, and eye protection. Do not dry brush it, as this releases spores. Instead, use a damp cloth with a solution of white vinegar or a detergent like soapy water, scrub the area, and then dry it thoroughly immediately after. A dehumidifier or strong fan directed at the area is essential for this drying step.

To prevent recurrence, you must improve air circulation and control humidity in that enclosed space. Leave the closet doors open as often as possible. Consider installing louvered doors instead of solid ones to allow passive air flow. A small, rechargeable desiccant dehumidifier placed inside the closet can make a significant difference by pulling moisture from the air. Ensure your apartment's AC is running efficiently, as it is your primary dehumidification system.

If the mold covers a larger area, has a musty odor permeating your clothes, or you discover staining on the back of the wall, the growth is likely more extensive behind the surface. In these cases, a professional inspection with borescope cameras and moisture meters is recommended to assess the full extent and identify any hidden leaks before remediation begins.
Posted by Sani Admin
Answered on May 10, 2026 9:51 am