Mold behind sofa: health risks and first steps?« Back to Previous Page

Persistent coughing in children linked to visible mould growth, especially near an AC vent, warrants immediate attention. The black spots are likely a colony releasing spores into the air your family breathes. In Dubai's climate, AC units create constant condensation, and if not draining properly, that moisture feeds mould growth in walls and ducts. The primary health risks are respiratory irritation, allergic reactions, and worsened asthma symptoms, which align with the coughing you described. Infants and children are particularly susceptible.

Your first step is to stop the exposure. Move the sofa away from the wall immediately and avoid disturbing the mould growth, as this will release more spores. Do not attempt to clean it with bleach, as this often fails to address the root moisture issue and can worsen indoor air quality by adding harsh chemical vapors.

The critical next step is a professional assessment. The visible wall growth is often just the tip of the iceberg; the mould likely extends inside the wall cavity or the AC system itself. A certified inspector can use moisture meters and borescopes to assess the full extent and identify the source of the water intrusion—often a clogged AC drain line or condensation pooling. They should also take an air sample for lab analysis to identify the spore types and concentrations. This documented evidence is crucial, as Dubai landlords are generally responsible for resolving such structural moisture issues under typical rental contracts.

Until the assessment, keep the area well-ventilated and consider running a standalone HEPA air purifier in the room to help reduce airborne spore levels. Resolving this requires fixing the moisture source first, then performing proper remediation.