Could AC mold cause my kids' persistent cough?« Back to Previous Page

A persistent cough in children coinciding with a damp, musty smell from AC vents is a strong indicator of microbial growth in the system. In Dubai's climate, where ACs run almost continuously, the combination of humidity from condensation and fine dust provides an ideal environment for mould and bacteria to thrive inside ductwork and drain pans.

The health impact is very real. Inhaling airborne spores and microbial fragments from a contaminated AC system is a common irritant to the respiratory tract, particularly in children. This can manifest as a persistent dry cough, worsened allergies, and congestion, especially when the system first starts and disturbs settled particles. The master bedroom's strong morning smell aligns perfectly with this pattern.

The first step is to visually inspect the vents for any visible black or greenish growth. However, the main contamination is often hidden deep within the unit or ducts. For a persistent issue affecting health, a professional inspection is strongly recommended to assess the entire system. A proper assessment involves more than a visual check; it should include surface and air sampling to be cultured in a lab. This identifies the specific type of mould present and confirms the source, which is critical for determining the correct remediation method.

Simply spraying a disinfectant is insufficient and can sometimes worsen the problem by releasing more particles without removing the source. Effective cleaning involves physically removing the biofilm and contamination, followed by treating the system and verifying results with post-cleaning testing. Addressing this can significantly improve your indoor air quality and reduce the irritants causing the cough.