Your children’s prolonged coughing is a significant indicator that the mold is affecting indoor air quality. In Dubai’s climate, the high humidity, especially behind curtains and on exterior walls in villas, creates a perfect environment for this growth. The constant switching between AC-cooled interiors and humid outdoor air leads to condensation, which soaks into porous materials like drywall.

For a patch larger than one square meter, or because health symptoms are already present, professional assessment is strongly advised. Do not attempt to clean it yourself with bleach or by scrubbing, as this will aerosolize the spores and can significantly worsen the air quality and your family’s exposure. Improper cleaning often spreads the contamination to the AC system.

The proper remediation process involves containment of the area with physical barriers and negative air pressure to prevent spore dispersal, safe removal of contaminated porous materials like the affected wall section, HEPA vacuuming, and antimicrobial treatment. The underlying cause, which is likely condensation or a hidden moisture leak, must also be identified and fixed to prevent it from returning immediately.

In Dubai, look for a provider that follows international standards like the IICRC S520 and can provide before-and-after lab reports to verify the spore count has been returned to safe levels. This documented proof is what separates a proper remediation from a simple surface clean that fails to address the health risk.