Can I treat black mold myself and stop it returning?« Back to Previous Page

Yes, you can treat a small area yourself, but stopping its return requires fixing the moisture source. Given the damp outer wall in Dubai's climate, this is likely a condensation issue from the temperature difference between our hot, humid air and the cool interior of the AC-chilled room.

For treatment, wear an N95 mask and gloves. Scrub the area with a mixture of detergent and water. Avoid bleach; it only lightens the colour and doesn't kill the mold roots. Dry the area completely immediately after cleaning.

To prevent recurrence, you must address the dampness. This wall is likely a thermal bridge, where condensation forms. Improve air circulation behind the wardrobe. A dehumidifier in the room can significantly reduce ambient moisture levels, which is crucial in our humid climate. Consider applying a mold-resistant paint or coating to the wall after it is thoroughly dry and clean.

Regarding your AC unit: it is a significant concern. Active mold growth on a wall can release spores that may be drawn into the AC system, which could then circulate them throughout your home. This is a plausible contributor to the coughing you've observed.

For a case involving persistent dampness, potential hidden growth inside the wall cavity, and health symptoms, a professional inspection is strongly advised. They can use moisture meters and borescopes to assess the wall's condition and determine if your AC system requires cleaning. In Dubai, reputable remediation firms follow standards like the IICRC S520 for mold remediation, which focuses on containing and removing the source properly.