Is black mold from my AC causing my allergies?« Back to Previous Page

The AC unit in our bedroom in Jumeirah has been leaking a bit for the last couple of months, and now I’m waking up every morning with a stuffy nose and an itchy throat. I’ve just spotted what looks like black speckles around the vent. Could this be causing my allergy-like symptoms, and what’s the first thing I should do about it?
Posted by Rajesh Mukherjee
Asked on April 23, 2026 1:30 pm
Yes, the black speckles around your AC vent are very likely causing your allergy-like symptoms. In Dubai's climate, AC units that develop leaks create the perfect environment for mold—the constant condensation combined with our high humidity provides ample moisture for growth. The most common types found in AC systems, like Cladosporium and Aspergillus, are known allergens that cause exactly the symptoms you describe: morning congestion, itchy throat, and sneezing.

The first thing you should do is stop using that AC unit immediately to prevent further spore dispersal into your bedroom. Wipe the visible speckles around the vent with a damp cloth and a mild detergent (while wearing a mask), but understand this is only a surface-level fix. The primary mold colony will be inside the unit, in the drip pan, or along the evaporator coils where the leak is occurring.

For a situation that has persisted for months, a professional inspection is strongly advised. They will identify the source of the leak and the full extent of the microbial growth. Remediation involves repairing the leak, thoroughly cleaning the internal components of the AC with specialized agents, and addressing any cross-contamination in the ductwork. Verifiable before-and-after testing, often through air and swab samples sent to a microbiology lab, is the only way to confirm the issue is fully resolved. In the UAE, look for providers who adhere to standards like the DM Guidelines and can provide documented proof of cleanliness, not just a visual inspection.
Posted by Sani Admin
Answered on April 24, 2026 8:27 am