How to treat and prevent mold in a built-in closet?« Back to Previous Page

The fuzzy black spots on your leather goods are likely active mold growth, a common issue in built-in closets on exterior walls in Dubai. The damp feeling confirms a humidity problem, probably from condensation where the cool interior meets the warm, humid exterior wall.

For treatment, first assess the extent. If the mold is only on the surface of a few items, you can clean them. For leather, use a solution of 70% isopropyl alcohol and 30% water; test on an inconspicuous area first. Wipe the mold away and allow the items to dry completely in a well-ventilated area, but not in direct sunlight. For the closet interior, a solution of white vinegar or a dedicated mold-cleaning product can be used to wipe down all surfaces. Wear an N95 mask and gloves during cleaning to avoid spore inhalation. Discard any porous items like cardboard boxes that show mold, as it's nearly impossible to remove the spores entirely.

The key to preventing its return is controlling the humidity source. The dampness is likely due to thermal bridging and condensation. Increase air circulation inside the closet by leaving the doors ajar for a few hours each day. A small battery-operated dehumidifier or moisture absorber (like silica gel packs) placed inside can make a significant difference. For a more permanent solution, consider having a professional install a small ventilation grille on the closet door to allow conditioned air from the room to circulate.

If the mold is extensive, has penetrated the wall itself, or returns quickly after cleaning, a professional inspection is recommended. They can use a moisture meter to identify the exact condensation points and suggest targeted solutions, which may include improving the wall's insulation. In severe cases, improper handling can spread spores, so professional remediation with containment and HEPA filtration is the safest approach.