Can we clean AC mold or call a professional?« Back to Previous Page

Given the symptoms and duration, you are likely dealing with a mold issue that requires professional attention. The black spots spreading on the wall are a clear sign of an active colony, and your husband's persistent respiratory symptoms are a common reaction to mold exposure, particularly in a sleeping environment.

While a small, surface-level patch might be manageable with a DIY approach, your situation involves a leak that has been ongoing for a month. This means moisture has penetrated the wall, and the visible spots are likely just the surface manifestation of a larger problem within the drywall or behind it. Bleach is ineffective on porous materials and only bleaches the surface without addressing the root colony; it can also aggravate respiratory issues.

In Dubai's climate, where high humidity and constant AC use create ideal conditions for mold, a contained problem can quickly become widespread. The leak must be repaired first to stop the moisture source. A professional inspection is advised to assess the full extent of the damage, identify the mold species (as some can be more problematic than others), and safely contain the area during remediation to prevent spores from spreading throughout your home. They will remove and replace compromised building materials and treat the area with appropriate antimicrobial solutions. For health-related cases with ongoing symptoms, this is the most reliable course of action.