How to safely remove and prevent recurring black mold?« 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 exterior wall. The weird thing is it's only on the shoes and the wall behind them. It's been incredibly humid lately, even with the AC running constantly, and I'm worried it's spreading. What's the best way to clean this safely and prevent it from coming back for good?
Posted by Camille Visser
Asked on March 19, 2026 12:29 am
Based on your description, this is a classic case of localized mold growth due to high humidity and lack of air circulation, a very common issue here in Dubai. The shoes, likely made of organic materials like leather, act as a food source, and the exterior wall corner is often a "cold spot" where condensation forms, especially with the AC battling the intense outdoor humidity.

First, for SAFE REMOVAL: Do not disturb it without protection. For a small patch, wear an N95 mask and gloves. Isolate the area. A HEPA vacuum can capture spores from the shoes and surrounding area. Clean the wall with a solution of detergent and water, not bleach, as bleach doesn't kill the roots and can worsen indoor air quality. Dispose of any heavily contaminated porous items like cardboard boxes.

PREVENTION is key to stopping it for good. The UAE's climate is the main culprit.
1. Air Circulation: This is your number one fix. The closet is a dead air space. Leave the closet door open regularly. Consider installing a small battery-operated dehumidifier or a PC fan inside the closet to keep air moving.
2. Control Humidity: Ensure your AC unit is serviced and draining properly. Even running constantly, if it's not effectively removing moisture, humidity stays high. Aim for indoor humidity levels between 45-55%. Use a hygrometer to monitor this.
3. Check for Leaks: While it might be condensation, an inspection of that exterior wall for any hidden leaks from recent rains is prudent.
4. Professional Assessment: If the mold returns quickly, covers more than a few square feet, or you smell a persistent musty odor, this indicates a deeper issue. DIY won't solve it.

Our company follows strict DM and UAE health guidelines for mold assessment. We use thermal imaging to find hidden moisture and moisture meters to pinpoint the exact source. If the problem persists, a professional inspection is strongly recommended to protect your property and health.

For a thorough inspection and remediation plan, you can call our experts at 800-MOLDS or email us at hello@saniservice.com.
Posted by Sani Admin
Answered on March 20, 2026 5:27 am