How to safely remove and prevent mold in child's room?« Back to Previous Page

The AC unit in my son’s bedroom has been leaking a bit of water, and now we’ve found black spots on the wall behind his wardrobe. He’s been having allergy symptoms in the morning, and I’m really worried it’s mold from the humidity. What’s the most effective way to clean this safely and prevent it from coming back, especially in a kid’s room?
Posted by Jose Kowalczyk
Asked on March 25, 2026 5:08 pm
Based on the symptoms you're describing and the visible black spots, this is a classic case of mold growth due to AC condensate leakage, a very common issue here in Dubai's climate. The high ambient humidity exacerbates the problem significantly.

First, safety is paramount, especially with a child involved. Do not attempt to clean extensive growth yourself with bleach or other household cleaners, as this can aerosolize spores and worsen allergy symptoms. For a small, contained area (less than 1 square meter), you can carefully wipe it with a solution of distilled white vinegar or a specialized EPA-approved mold cleaner, wearing an N95 mask and gloves. However, the location behind the wardrobe suggests it's likely more widespread than it appears.

The most critical step is addressing the source. The AC unit must be inspected by a licensed HVAC technician to fix the leak, unclog the drain line, and ensure the drip pan is functioning correctly. This is non-negotiable for prevention.

To prevent recurrence, maintain indoor humidity levels between 45-55% using a dehumidifier if necessary. Ensure the room is well-ventilated. Move the wardrobe slightly away from the wall to allow for air circulation. Most importantly, schedule a professional mold inspection. We use thermal imaging and moisture meters to detect hidden dampness and air sampling to identify spore types and concentrations, which is crucial for your son's health.

Given the allergy symptoms and the hidden nature of the growth, I strongly recommend a professional assessment to ensure it's eradicated safely.

For immediate assistance, you can call our team at 800-MOLDS (800-66537) or email hello@saniservice.com for a comprehensive inspection and remediation plan.
Posted by Sani Admin
Answered on March 27, 2026 10:02 am