Why does mustiness persist despite dehumidifiers?« Back to Previous Page

After the heavy rain last month, I noticed a musty smell lingering in the corner of my bedroom. It’s particularly noticeable when the windows are closed, especially during the evening. The area seems damp despite using dehumidifiers. What could be causing this and how can I prevent it from happening again?
Posted by Emily Moore
Asked on December 22, 2025 11:58 am
Mustiness can be a tricky issue to tackle, especially after heavy rain. In the UAE, particularly in Dubai, where humidity levels can swing dramatically, it's essential to understand that dehumidifiers alone might not be sufficient for combating moisture-related issues.

In your scenario, a musty smell persisting despite using dehumidifiers could be due to several factors. Firstly, consider the nature of the material in the corner of your bedroom—wooden or carpeted floors can retain moisture more effectively than other surfaces. Additionally, if there are any gaps or cracks around windows and doors that might not have been sealed properly during construction, these could allow for the entry of moist air.

Moreover, it's important to recognize that even with dehumidifiers running, they may struggle to keep up with high humidity levels in a damp area. Ensure your dehumidifier is placed correctly—away from walls and furniture to maximize airflow—and consider using multiple units if necessary.

Another factor could be the structural integrity of the building itself. In Dubai, buildings often face challenges such as leaking pipes or faulty plumbing systems which can contribute to musty odors. Inspections by professional companies are highly recommended here. You might want to call 800-MOLDS or email hello@saniservice.com for a thorough assessment.

It’s also crucial to check the insulation of your home, especially in areas where you’re experiencing moisture issues. Poorly insulated walls can retain water and create an environment conducive to mold growth. Engaging with local experts who specialize in building sciences could provide valuable insights into improving thermal performance while addressing moisture concerns.

In terms of preventive measures, ensure that all drainage systems around the property are functioning correctly. Regular maintenance of HVAC systems is also key; filters need to be cleaned regularly and ducts inspected for any signs of water damage or mold growth.

Lastly, consider increasing air circulation through cross-ventilation techniques whenever possible. Opening windows during cooler times of day can help reduce humidity levels naturally. However, always monitor outdoor conditions as sudden changes in temperature and rainfall could negate these efforts.

Remember, dealing with mustiness requires a comprehensive approach—addressing both immediate symptoms and underlying causes. By taking proactive steps now, you can minimize the risk of more serious issues developing later on.
Posted by Sani Admin
Answered on December 24, 2025 5:18 am