Is AC mold causing my toddler's cough? How to clean safely?« Back to Previous Page

The AC unit in our Jumeirah apartment has been leaking a bit into the closet in my toddler's room, and now I'm seeing these black speckles on the back wall. My son has had a runny nose and a weird cough for over a week that just won't go away, and I'm starting to panic that it's connected. Is this definitely mold and what's the safest way for me to clean it myself without making his symptoms worse?
Posted by Jessica King
Asked on March 30, 2026 2:53 pm
Based on your description, that is almost certainly mold growth caused by the AC condensate leak. The combination of moisture from the leak and our high UAE humidity creates the perfect environment for mold. The black speckles are a major red flag, and your toddler's persistent respiratory symptoms are a significant concern, as children are highly vulnerable to mold exposure.

For a small area (less than 1 square meter), you can attempt to clean it, but with extreme caution. Do NOT just wipe it or use bleach, as this can aerosolize the spores and make the situation much worse for your son.

Here's the safest DIY protocol: First, isolate the area. Keep your toddler and family out of the room. Seal the closet with plastic sheeting if possible. Wear an N95 mask, gloves, and safety goggles. Mix a solution of 1 part white vinegar to 1 part water OR a dedicated EPA-approved mold cleaner. Lightly mist the affected area to dampen the spores and prevent them from becoming airborne, then gently scrub with a disposable cloth. Dispose of all cleaning materials in a sealed bag immediately.

However, I must STRONGLY recommend against DIY in this scenario. The leak indicates a systemic AC issue that must be fixed first, or the mold will return. More critically, what you see on the surface is often just the tip of the iceberg; mold can grow inside the wall cavity and the AC unit itself, contaminating the air your son breathes every time the AC turns on. A professional inspection with moisture meters and thermal imaging is essential to find the full extent of the problem and the source of the moisture.

Given the health symptoms, this is not a wait-and-see situation. For a proper assessment and remediation plan, please call us at 800-MOLDS or email hello@saniservice.com. We can test to confirm the mold type and ensure it's removed safely and completely.
Posted by Sani Admin
Answered on April 2, 2026 11:17 am