How to control humidity in a sealed seaside closet?« Back to Previous Page

The root cause is likely condensation from the temperature differential between the cool interior wall and the humid sea air, creating a perfect breeding ground for mold inside the sealed space. Constant AC elsewhere in the room doesn't address this localized microclimate.

For a long-term solution, start by having a professional inspection to identify any hidden moisture intrusion or insulation flaws within the wall cavity, which is common in seaside buildings. The previous cleaning failed because it didn't solve the moisture source.

Immediately relocate your leather goods to a drier area to prevent permanent damage. For the closet itself, install a low-wattage dehumidifying rod or a compact, standalone desiccant dehumidifier designed for enclosed spaces; these are made to run continuously and can help reduce the relative humidity below the 60% threshold where mold thrives. Ensure the closet isn't over-packed, as air needs to circulate. Also, leave the doors slightly ajar for a few hours each day to break up the stagnant, humid air pocket.

For a permanent fix, the wall may require professional remediation, including anti-microbial treatment and improving the vapour barrier or insulation to prevent the cold surface condensation that's causing the recurrent problem.