Can high humidity cause a musty smell?« Back to Previous Page

After the heavy rain last month, I noticed a musty odor starting to develop in my bedroom closet. It’s particularly noticeable when I open the door after a few days of it being closed up. The humidity seems to be the culprit since the smell gets worse during rainy spells. What can I do to prevent this from happening or recurring?
Posted by Deepak Patel
Asked on February 16, 2026 9:47 pm
Yes, high humidity can absolutely cause musty smells. In environments like Dubai and the UAE where climate conditions can be extremely humid, especially after heavy rains or during monsoon seasons, moisture build-up is a significant issue. This moisture provides an ideal breeding ground for mold and mildew to grow, leading to those characteristic musty odors that you've noticed in your bedroom closet.

In Dubai, the air humidity levels can fluctuate widely depending on seasonal changes and weather patterns. During summer months, high temperatures combined with relatively high humidity create a perfect environment for moisture accumulation. If not properly managed, this can lead to increased incidences of mold growth, particularly in areas such as closets where ventilation is limited.

To prevent or mitigate these issues, several actions can be taken:

1. Ventilation: Ensure that your closet has proper airflow by opening windows when possible and using exhaust fans during humid periods. Consider installing a dehumidifier to maintain indoor humidity levels below 60%, which helps in preventing mold growth.

2. Sealing Gaps: Seal any gaps around doors, windows, or plumbing fixtures where moisture can infiltrate. Use weatherstripping or sealants that are appropriate for local climate conditions.

3. Regular Cleaning and Drying: Regularly clean the closet to remove dust and debris which can harbor mold spores. After closing the closet door, open it occasionally to allow fresh air in and facilitate drying out any lingering moisture.

4. Use of Desiccants: Consider using silica gel or other desiccant packets to absorb excess moisture within the closet space. These are particularly useful during prolonged periods of high humidity.

5. Professional Inspection: If you notice persistent musty odors despite your efforts, it might be wise to engage a professional environmental inspection service. Companies like Saniservice (contact 800-MOLDS or email hello@saniservice.com for assistance) can conduct thorough inspections and provide remediation services if necessary.

Remember that the key is maintaining consistent control over humidity levels within your home. By implementing these measures, you can significantly reduce the risk of musty odors developing and ensure a healthier indoor environment in Dubai.
Posted by Sani Admin
Answered on February 19, 2026 8:07 am