How to remove and prevent AC mold in humid climate?« Back to Previous Page

The black spots you're describing are highly indicative of mold growth, a common issue in Dubai due to our high humidity levels and year-round reliance on AC systems, which creates significant condensation. The proximity to the leaking AC unit confirms the moisture source. Given your sinus irritation, which is a known health effect of mold exposure, this situation requires immediate and proper attention.

For a small, surface-level contamination (less than 10 square feet), you can carefully clean it with a solution of diluted detergent. However, given the location (porous drywall) and the fact the moisture source is an AC leak, I strongly recommend against a DIY approach. Inadequate remediation can aerosolize spores and spread the contamination throughout the room. The leak must be repaired by a certified HVAC technician first to eliminate the moisture source; otherwise, the mold will return.

For safe and effective removal, the affected section of drywall often needs to be cut out and replaced by professionals following IICRC S520 standards for mold remediation. Our teams at Saniservice use controlled containment, negative air pressure with HEPA filtration, and antimicrobial treatments to ensure the mold is eradicated and cross-contamination is prevented. This is not a simple cleaning task.

To prevent recurrence after remediation, ensure your AC unit is serviced regularly to prevent condensation leaks and that the drain pan and line are clear. Maintain indoor humidity levels below 60% using a dehumidifier if necessary.

For a proper assessment and a certified remediation plan, please call our specialists at 800-MOLDS (800-66537) or email hello@saniservice.com. We can conduct a thorough inspection to determine the full extent of the growth, which is often not visible on the surface.