How to kill mold in closet and prevent it returning?« Back to Previous Page

That black spot pattern and damp smell are classic signs of a mold colony, and it's a very common issue in Marina apartments due to the high humidity and constant AC use. The wall behind the closet is likely a cooler surface where moisture from the humid air condenses, creating the perfect damp environment for mold to grow on the drywall and dust.

For the existing mold, start by addressing the moisture source. Move your clothes out immediately and air out the space. For small, spotty areas (under ~1m²), a solution of white vinegar or a diluted bleach mix can kill surface mold—scrub it off, let the area dry completely, and dispose of any contaminated materials like cardboard boxes. However, killing the mold doesn't remove the staining or the underlying spores, and scrubbing can aerosolize them.

Given the location is your bedroom and it has affected your belongings, a professional assessment is strongly recommended. In Dubai, proper remediation involves containment of the area, HEPA vacuuming, antimicrobial application, and addressing the root moisture cause. The humidity will cause it to return unless the condensation issue is solved.

To prevent recurrence, you must control the humidity in that enclosed space. Leave the closet doors open to allow air circulation from your AC. Consider using a small, standalone desiccant dehumidifier inside the closet. Ensure your AC unit is serviced and draining properly, as a clogged drain line can elevate indoor humidity. For a permanent fix, a technician can assess if adding a ventilation grille to the closet door or wall would help equalize the temperature and humidity with the conditioned room air.