Are these black mold spots in my closet dangerous?« Back to Previous Page

We've lived here for 2 years and just noticed a bunch of small black spots appearing in the corners of our master bedroom closet, especially on the leather bags and shoes we have stored in there. The room has an exterior wall and I'm worried the recent humidity has caused it, but I've never dealt with this before. Is this the dangerous black mold I keep hearing about, and what's the first step I should take to get rid of it safely?
Posted by Ali Malik
Asked on April 5, 2026 8:15 pm
Based on your description, the black spots on your leather goods in a closet against an exterior wall are highly suggestive of mold growth, likely due to the specific climate conditions we face in Dubai. The recent high humidity, combined with potential temperature differentials from your AC unit and the exterior wall, creates a perfect environment for condensation and subsequent mold proliferation. While the term "black mold" often refers to Stachybotrys chartarum, a type that can produce mycotoxins, not all black-colored mold is this specific species. Many common molds, like Cladosporium or Aspergillus niger, also appear black and can cause allergic reactions and respiratory irritation, especially in sensitive individuals.

The first step is to avoid disturbing the area, as this can release spores into the air. Do not attempt to clean the leather items with conventional cleaners, as this can set the stains and spread the spores. For a small, localized area, you may carefully wipe the visible surface with a damp cloth dipped in a diluted detergent solution, but this is only a temporary measure.

However, the critical action is to identify and address the moisture source. In our climate, this is often due to inadequate ventilation, high indoor humidity levels from AC systems not being optimized for dehumidification, or minor condensation leaks within the wall cavity itself. Given the location on an exterior wall, a professional inspection is strongly recommended. Our certified inspectors use tools like thermal imaging and moisture meters to pinpoint the exact cause of the moisture intrusion hidden from view, which is essential for a permanent solution. We can also conduct air and surface sampling to accurately identify the mold species and determine the appropriate remediation protocol, in full compliance with Dubai Municipality guidelines.

For a proper assessment and safe, effective remediation of your closet and belongings, please contact our specialists at Saniservice. Call us at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an inspection.
Posted by Sani Admin
Answered on April 6, 2026 6:19 am