How to remove black mold in humid bedroom?« Back to Previous Page

Black spots at the wall-ceiling junction are a classic sign of condensation-related mold, extremely common in Dubai's humid climate, especially with AC units creating thermal bridges on cold exterior walls. For a small patch under one square meter, you can often manage it yourself safely.

First, address the moisture source. Wipe down the foggy windows each morning to remove excess water. Ensure your AC is running efficiently and set to a consistent temperature; frequent on/off cycling increases condensation. For immediate cleaning, wear an N95 mask and gloves. Mix a solution of one part white vinegar to four parts water or a teaspoon of baking soda in a spray bottle. Lightly mist the area, let it sit for ten minutes, then scrub with a disposable cloth. Dry the area thoroughly with a fan—do not repaint until the wall is completely dry and you're sure the moisture issue is resolved.

Yes, you should absolutely alert your landlord. Under UAE rental law, structural issues and problems arising from the building's condition, like inadequate insulation leading to persistent condensation, are typically the landlord's responsibility. They need to be notified to investigate potential underlying issues, such as a hidden leak from the roof or a faulty AC drain line. If the mold returns quickly after cleaning or covers a larger area, a professional inspection is needed to identify the core moisture problem, as surface cleaning alone will not provide a long-term solution.