Is AC mold causing my child's cough? Urgent?« Back to Previous Page

The AC unit in our kids' bedroom has been leaking a bit for the last few weeks and now I'm seeing black spots around the vent on the wall. My youngest has developed a persistent cough that just won't go away, and I'm starting to panic. Is this definitely mold and how urgently do I need to get a professional to test it for our family's health?
Posted by Margaret Smith
Asked on April 1, 2026 4:45 pm
The black spots around your AC vent are very likely microbial growth, and the persistent cough could certainly be related. The constant humidity and condensation from a leaking AC unit create an ideal environment for mold and bacteria to thrive. For infants and children, whose respiratory systems are still developing, this exposure often manifests as coughing, congestion, or worsened allergy symptoms.

In Dubai's climate, where we rely on AC year-round, a leaking unit can quickly become a source of indoor air quality issues. The urgency is high because the problem is actively affecting a child's health. You should schedule a professional indoor environmental assessment. A proper inspection involves more than a visual check; it includes air and surface sampling to be analyzed in a microbiology lab. This identifies the specific type of mold present and its concentration, which is critical for understanding the health risk and planning the correct remediation.

Until a professional arrives, you can minimize exposure. Keep the child out of that room and ensure good ventilation elsewhere. Do not attempt to clean the black spots yourself, as scrubbing can release a large number of spores into the air. The primary fix will be to repair the AC leak to remove the moisture source, followed by a certified hygienization of the entire unit and ductwork to address the contamination.
Posted by Sani Admin
Answered on April 3, 2026 4:29 am