How to remove and prevent mold in a humid closet?« Back to Previous Page

Good question. This is a very common issue we see in villas across Al Barsha, Jumeirah, and other communities, especially during the more humid months. That black, fuzzy growth is almost certainly a Cladosporium or Aspergillus type mold, thriving in the stagnant, humid micro-climate of your closet.

First, for the existing mold on your leather goods: Do not just wipe it. Mold has hyphae (root-like structures) that penetrate the material. For leather, I recommend a solution of 70% isopropyl alcohol (rubbing alcohol) and 30% distilled water. Apply it lightly with a soft, clean cloth, testing on an inconspicuous area first. This will kill the surface mold without oversaturating and damaging the leather. Afterwards, allow the items to dry completely in a well-ventilated, dry area before even thinking of returning them to the closet. For severe infestation on valuable items, a professional restoration service is advised.

The core of your problem, as you correctly identified, is the lack of air circulation and the temperature differential on that outside wall. The cold AC inside meets the warm, humid air outside, causing condensation within the wall cavity—this is the moisture source. Silica gel packets are almost useless for a problem of this scale.

Here’s your prevention plan:
1. Improve Airflow: This is critical. Leave the closet doors cracked open whenever possible. Consider installing a small, battery-operated dehumidifier or a low-wattage ductless fan specifically designed for closets to keep air moving.
2. Inspect the Seal: Check the sealing around the closet's external wall. Any cracks or gaps can allow humid air to infiltrate. These should be professionally sealed.
3. AC Service: Ensure your AC unit is serviced and draining properly. A blocked drain line can significantly increase indoor humidity levels, defeating its purpose.
4. Professional Assessment: Given that the mold is on an external wall, there is a possibility of a more significant hidden mold issue within the wall itself if condensation has been ongoing. A professional inspection with thermal imaging and moisture meters is the only way to rule this out.

If the problem persists or you suspect it's more widespread, please don't hesitate to call for a professional assessment. We can identify the exact moisture source and species of mold. Call us at 800-MOLDS (800-66537) or email hello@saniservice.com for a thorough inspection.