How to permanently treat mold and choose a dehumidifier?« Back to Previous Page

The damp, cold wall behind the wardrobe is a classic sign of condensation mould, very common in Marina apartments due to high humidity meeting cold AC-chilled surfaces. For a permanent fix, you must address both the existing growth and the moisture source.

First, for the visible mould, do not just wipe it. The black spots indicate an active colony. Scrubbing can aerosolise spores. A HEPA vacuum and an antimicrobial cleaner designed for porous surfaces like plaster are necessary to remove the biomass. However, if the mould has penetrated the wallboard or the area is larger than one square meter, a professional inspection is strongly advised to assess the extent and prevent cross-contamination during removal.

The root cause is the condensation from the temperature differential. To stop it returning, improve air circulation immediately. Pull the wardrobe a few inches from the wall. Ensure your AC unit is serviced and draining properly, as a clogged drain line adds humidity. For dehumidification, a compressor-type (refrigerant) dehumidifier is essential for Dubai's climate. Look for a unit with a capacity rated for your room's size and an automatic humidistat to maintain humidity between 45-55%, the range that inhibits mould growth. Place it near the problem area.

Ultimately, the most effective solution is often a combination of remediating the existing mould, correcting the AC performance, and using a dedicated dehumidifier to manage the ambient moisture that the AC alone cannot handle.