Is this toxic mold causing our cough?« Back to Previous Page

Our AC unit in the bedroom has been leaking a bit for a couple of weeks, but after the heavy dew this week, I woke up to black speckles spreading on the wall behind the headboard. My husband and I have both had a persistent dry cough and itchy eyes for days now that just won't go away. What's the fastest way to get this tested to see if it's toxic mold and if it's causing our symptoms?
Posted by Jose Thomas
Asked on April 11, 2026 7:55 am
Based on your description of the black speckles, AC leak, and matching respiratory symptoms, it is highly likely that mold growth is the cause of your cough and itchy eyes. The persistent moisture from the leaking unit, combined with Dubai's high humidity, creates an ideal environment for mold. While the term "toxic mold" is often overused, many common household molds like Cladosporium or Aspergillus can produce these exact symptoms, especially in an enclosed space like a bedroom.

The fastest way to get a definitive answer is through professional mold testing. For a situation with active growth and health symptoms, a DIY test kit is not recommended as it can easily be contaminated and lacks the analysis to identify species or concentration. A proper inspection involves a certified technician taking air and surface samples, which are then cultured in a microbiology lab to identify the specific types of mold present and their spore counts. This lab report is crucial, as it confirms whether the species identified are known to cause the type of symptoms you're experiencing and dictates the appropriate remediation protocol.

Given the location on a wall behind furniture, the mold growth is almost certainly more extensive inside the wall cavity. Simply wiping the visible spots is ineffective and can aerosolize the spores, worsening your exposure. The remediation process must include fixing the AC leak at its source, isolating the affected area, removing contaminated porous materials like drywall or insulation, and using HEPA filtration to clean the air. Your symptoms should improve significantly once the source is properly removed and the AC unit is repaired to prevent recurrence. For verification, always request the lab report; it is the concrete evidence that separates a proper remediation from a superficial cleaning.
Posted by Sani Admin
Answered on April 11, 2026 11:45 am