Safest way to test and clean mold?« Back to Previous Page

Given Dubai's high humidity and older building construction, that black spot is likely mold, which could explain the persistent coughing. The safest approach requires professional assessment before any cleaning.

First, do not disturb the area. Mold spores become airborne when agitated, potentially worsening symptoms. Contact a certified mold inspector who uses a moisture meter to identify the source of the water intrusion—often condensation from AC units, leaks, or rising damp in older villas. They should take air and surface samples for a microbiology lab to identify the species and concentration. This lab report is critical; it confirms if it's a common allergen like Cladosporium or something more concerning, and dictates the proper remediation protocol.

For cleaning, standard bleach or DIY solutions are ineffective and can be hazardous. Professional remediators will seal off the area with negative air pressure to prevent cross-contamination, remove the affected materials (like that section of drywall), and use HEPA filtration to clean the air. They should provide a clearance test after the job to verify spore counts have returned to normal indoor levels.

Always verify a company’s credentials; look for IICRC-certified technicians and insist on seeing the before-and-after lab data. This documented evidence is what separates a proper remediation from a superficial cleaning that will fail.