How to treat black mold and reduce humidity?« Back to Previous Page

My kids have been coughing and I suspect it might be the black spots I just found behind the wardrobe in our master bedroom. We’ve lived here for 2 years and just noticed it, but the wall feels damp and the room always feels more humid than the rest of the apartment in Downtown Dubai. What’s the best way to treat this ourselves to stop it from spreading, and how can I keep the humidity down to prevent it from coming back?
Posted by Robert Johnson
Asked on May 5, 2026 6:40 am
Black spots behind furniture in a humid room are a classic sign of a mould issue, often caused by condensation from the room's temperature differential with the outside. For a small area (less than one square meter), you can clean it yourself with a mixture of white vinegar and water or a dedicated mould remover. Always wear an N95 mask and gloves during cleaning to avoid inhaling spores.

The damp wall suggests a persistent moisture problem. First, move the wardrobe away from the wall to allow air circulation. To combat the high humidity, ensure your AC is running efficiently and set to a consistent temperature, ideally between 22-24°C. Using a hygrometer, you can check the room's relative humidity; aim to keep it below 60%. A dehumidifier can be very effective in a consistently damp bedroom.

Since your children are experiencing symptoms, this warrants more caution. Disturbing the mould during cleaning can aerosolize spores. For health concerns or if the area is larger than a square meter, a professional inspection is recommended to identify the species and the moisture source. In Dubai, hidden condensation leaks within AC units or behind walls are common and require diagnostic tools like moisture meters to locate. A lab test can confirm the mould type and guide the safest remediation approach.
Posted by Sani Admin
Answered on May 8, 2026 3:34 am