Black mold causing allergies: clean ourselves or call pro?« Back to Previous Page

Yes, the black mold in your closet is very likely the cause of your husband's worsening allergy symptoms like a stuffy nose and itchy eyes. Mold releases spores and microbial volatile organic compounds (mVOCs) into the air, which are common irritants, especially during sleep when exposure is prolonged.

Given its location on an exterior wall in Dubai's humid climate, the cause is almost certainly condensation or a minor water intrusion. The temperature difference between the air-conditioned room and the hot outside wall creates a perfect environment for mold growth. Simply cleaning the visible patch may not be a permanent solution if the moisture source isn't identified and controlled.

For a patch smaller than one square meter (about the size of a standard sheet of printer paper), you can clean it yourself. Wear an N95 mask, gloves, and safety glasses. Scrub the area with a mixture of detergent and water, then wipe with a diluted bleach solution (one part bleach to four parts water). Allow it to dry completely. However, this addresses the symptom, not the cause.

Because the symptoms are persistent and worsening, and the mold is on a critical exterior wall, a professional inspection is strongly recommended. They can use a moisture meter to find the exact source of the dampness—which could be a tiny leak in the wall or insufficient insulation—and ensure the mold hasn't spread inside the wall cavity, which is common in such cases. In the UAE, remediation companies should follow DM guidelines and provide a post-remediation verification (PRV) report, often from an independent third party, to confirm the space is truly mold-free. This diagnostic step is crucial for a long-term fix.