Is AC mold causing our cough and how dangerous?« Back to Previous Page

A persistent dry cough and congestion coinciding with AC leaks and visible black mould is a strong indicator your indoor air quality is compromised. In Dubai's climate, constant AC use creates condensation, and even small leaks provide the persistent moisture mould needs to grow inside walls and units.

The mould itself is likely a common type like Cladosporium or Aspergillus, which are irritants, not typically toxic. However, for individuals with allergies or asthma, prolonged exposure can trigger significant respiratory issues and sinus infections. Your symptoms are a clear sign your bodies are reacting.

Do not attempt to clean this yourself. Disturbing the mould without proper containment can aerosolize spores, spreading them throughout your bedroom and potentially making the problem worse. The leak must be fixed at its source, and the wall likely needs inspection for hidden growth.

For a case with ongoing health symptoms and a hidden moisture source, a professional assessment is strongly advised. They can identify the exact mould species through lab testing and determine the full extent of the contamination behind the wall and within the AC unit itself, which is crucial for proper remediation.