Is AC leak causing mold health risks?« Back to Previous Page

The AC leak is very likely causing mold growth, which is the probable source of your husband's symptoms. The constant moisture from the leak, combined with Dubai's high ambient humidity and the dark, still space behind the curtain, creates an ideal environment for mold. His symptoms—nighttime congestion and a morning cough that improve away from the bedroom—are classic indicators of a mold-related reaction.

While the visible spots may be small, the hidden moisture damage inside the wall cavity could be more extensive. In Dubai's climate, mold can colonize a damp area in as little as 24-48 hours, and a persistent leak over two weeks means active growth is almost certain. The health risk is particularly significant for individuals with allergies, asthma, or compromised immune systems. Continued exposure can worsen respiratory issues over time.

You should address this within the week. Start by stopping the source: have an HVAC technician repair the AC leak immediately. For the mold itself, a professional inspection is strongly recommended. They can use moisture meters and borescopes to assess the hidden damage within the wall and identify the mold species through lab testing, which determines the appropriate remediation strategy. Simply wiping the visible spots is insufficient if the wall interior is wet. A proper remediation will involve controlled removal of affected materials and addressing the moisture to prevent recurrence.