AC mold causing illness: how to clean and test?« Back to Previous Page

The AC in my bedroom has been leaking for a while and now I’ve found patches of black and green mold spreading on the wall behind the wardrobe. I’ve been waking up with a stuffy nose and a sore throat for the last two weeks and I’m really worried it’s connected. What’s the best way to get this professionally cleaned and tested to make sure it’s safe?
Posted by Rahul Sharma
Asked on March 30, 2026 1:15 pm
Your symptoms are a common reaction to mold exposure from a leaking AC unit, especially in Dubai's humid climate where condensation creates ideal conditions for growth. The black and green patches indicate active colonization that requires professional remediation, not just surface cleaning.

The first step is to stop the moisture source. Have an AC technician repair the leak immediately. For the mold itself, DIY cleaning with bleach or vinegar is ineffective on porous surfaces like drywall and can aerosolize spores, worsening your exposure. Professional remediation involves isolating the area, using HEPA filtration to capture spores, and removing contaminated materials like sections of the wall.

After remediation, the area must be verified as safe through post-remediation testing. This involves air and surface sampling analyzed by an accredited microbiology lab to confirm spore counts have returned to normal indoor levels. Without this validation, you cannot be sure the problem is resolved.

Given your persistent health symptoms, a full indoor environmental assessment is advisable. This includes testing the AC unit's internal evaporator coils and drip pan—common reservoirs for mold that then spread spores throughout the room. In Dubai, where AC runs year-round, this is a frequent pathway for exposure.

Look for a provider that offers a clear process: inspection, remediation with containment protocols, and post-cleaning verification with documented lab results. This scientific, evidence-based approach is the only way to ensure your bedroom is truly safe.
Posted by Sani Admin
Answered on March 31, 2026 8:36 pm