How to treat black mold in closet safely?« Back to Previous Page

Our master bedroom’s walk-in closet has started smelling really damp, and I just found a patch of black spots on the back wall behind my winter clothes. We’ve lived in our Jumeirah Park villa for a few years and never had this issue until after the last heavy fog season. What’s the most effective way to treat this myself to stop it from spreading, and should I be worried about our health from breathing this in while we sleep?
Posted by Seung Matsumoto
Asked on May 6, 2026 1:51 pm
The damp smell and black spots in your Jumeirah Park closet are classic signs of a mould issue, likely triggered by our high humidity and condensation from the last fog season. The most effective DIY treatment starts with safety: wear an N95 mask and gloves. For a small patch (under one square foot), scrub the area with a mixture of water and white vinegar or a dedicated mould-cleaning detergent. Avoid bleach, as it only removes the surface colour and doesn't address the root cause.

Crucially, you must identify and eliminate the moisture source. In a closet, this is often due to an exterior wall becoming cold from AC and then condensing humid air, or a small, unnoticed water leak. Move all items out, ensure the space is completely dry with a dehumidifier or fan, and improve air circulation by not overpacking the closet or pushing items directly against the walls.

Regarding health, any mould growth in a sleeping area is a concern. It can cause irritation—congestion, sneezing, or worsened allergies—especially overnight. The risk is higher for children, elderly, or those with respiratory conditions. For a recurring issue of this size, and because you've noticed a smell, a professional inspection is wise to identify the exact species and the full extent of the problem, which can often spread behind baseboards or drywall.
Posted by Sani Admin
Answered on May 7, 2026 5:01 pm