How to safely clean black mold behind bedroom wardrobe?« Back to Previous Page

Stop using that room immediately and keep children away from the area until you've assessed it. Black spots behind a wardrobe on an outside wall after a storm strongly suggest moisture intrusion and potential mould growth.

For a small patch (under one square meter), you can clean it yourself with proper precautions. Wear an N95 mask, gloves, and eye protection. Mix a solution of one part white vinegar to four parts water in a spray bottle—it’s effective on many common moulds in our climate and less harsh than bleach. Spray the area, let it sit for an hour, then scrub with a stiff brush. Dry the surface completely with a fan; dehumidifiers are ideal for this step in Dubai's humidity.

However, simply cleaning the surface may not solve the problem. The storm likely caused moisture to wick into the wall cavity, and the wardrobe traps humid air from your AC, creating a perfect breeding ground. The mould you see is often just the surface manifestation of a deeper issue.

For health concerns with children and given the likely cause, a professional inspection is strongly advised. They use moisture meters and borescopes to check inside the wall for hidden growth and can perform air quality tests to identify spore types and concentrations. This is the only way to know the full extent and ensure it's properly remediated to prevent recurrence. In the UAE, look for providers who follow IICRC S520 standards for mould remediation and can provide a post-clearance verification test from an independent lab.