How to clean mold from AC unit in Dubai?« Back to Previous Page

For small, visible surface mold on vent covers, you can clean it yourself. Turn the AC off at the circuit breaker. Remove the vent cover and wash it with a solution of warm water and a few drops of dish soap. For the spots themselves, use a cloth with a diluted white vinegar solution (1 part vinegar to 4 parts water) and wipe thoroughly. Allow everything to dry completely before reinstalling.

However, this only addresses surface-level contamination. The constant dampness and your husband's symptoms suggest a deeper issue within the unit or ductwork, which is common in Dubai's humid climate where AC systems run year-round and condensation is a persistent problem. The black spots at the vent are often just the visible sign of a larger colony growing on the cooling coils or in the drip pan inside the unit.

A professional inspection is strongly recommended in this case. DIY cleaning cannot reach the internal evaporator coils or fully sanitize the condensate drain pan, which are the primary sources of microbial growth. Professionals use specialized biocides and high-pressure steam cleaning to address the root cause. For health-related symptoms, a lab test can identify the specific mold type, which informs the correct remediation method. This is the most effective way to prevent recurrence and improve your indoor air quality.