How to permanently kill AC mold in humid Dubai?« Back to Previous Page

Bleach only removes surface discoloration but doesn't kill the mold roots, especially on porous surfaces like drywall. In Dubai's high humidity, the underlying moisture problem will cause regrowth every time.

First, stop the moisture source. The AC condensation drain line is likely clogged, a very common issue here. Turn off the unit and check the white PVC pipe leading from the indoor unit to the drain. A professional HVAC technician can clear this blockage, which is the only permanent solution to prevent water from leaking onto your wall.

For the mold itself, scrubbing with a detergent solution can remove the surface growth, but the mold has likely penetrated the wall. For a patch larger than a square foot, cutting out and replacing the affected drywall or insulation is often necessary to ensure all spores are removed. Simply painting over it with mold-resistant paint after cleaning is not sufficient if the material behind is still damp and contaminated.

Given the regrowth you've seen, a professional inspection is recommended to assess the full extent behind the wall. They can use moisture meters to find the dampness and recommend the correct remediation protocol. In many JVC apartments, this requires coordinating with building management, as the leak may originate from a central chiller line or a neighbor's unit.

To manage the high ambient humidity, ensure your AC is correctly sized and running consistently to dehumidify the air, even when you're out. Using a standalone dehumidifier in the room can also help, especially during the more humid winter months.