How to stop AC leak and remove black mold permanently?« Back to Previous Page

The immediate priority is fixing the AC leak, as that is the source of the moisture feeding the mold. The constant drip creates a perfect, damp environment for mold growth, which is why you're seeing it on the wall and likely experiencing worsened allergy symptoms from the spores being circulated.

For the AC leak, you need a qualified HVAC technician to diagnose the cause. In Dubai's climate, the most common reasons are a clogged condensate drain line or a damaged drain pan. The technician should fully unclog the line, ensure the drain pan is properly sloped and not cracked, and verify the unit's insulation is intact to prevent condensation on cold surfaces.

For the existing black mold, do not attempt to remove it yourself by just wiping or spraying it. Disturbing it without proper containment will release a large number of spores into your bedroom. For a patch behind furniture, professional remediation is strongly advised to safely contain the area, remove the contaminated material (if porous like drywall), and HEPA-vacuum the space. They will use antimicrobial treatments to address the root colony.

To prevent recurrence, the AC leak must be permanently resolved. Afterwards, maintain indoor humidity below 60% using a dehumidifier if necessary, especially during humid months. Ensure your AC unit receives a professional deep cleaning and coil treatment at least annually to prevent microbial buildup inside the system that can contribute to air quality issues and clog drains. A company with its own microbiology lab can provide before-and-after testing to verify the environment is truly clean.