Why is there a musty smell in my closet?« Back to Previous Page

After the heavy rain we had last month, I noticed a musty smell coming from the closet in my master bedroom. Even though I opened all the windows to air out the room, the smell lingered for days. It’s getting worse especially during the cooler evenings. What could be causing this and how can I prevent it?
Posted by Ashley Clark
Asked on February 28, 2026 12:16 pm
The musty smell you're experiencing is likely due to excessive moisture and humidity levels in your closet. In the UAE, particularly Dubai, our climate can be quite warm and humid, especially during certain seasons. This creates an ideal environment for mold growth, which often manifests as that characteristic musty odor.

In general, high humidity levels above 70% can lead to condensation forming on surfaces, creating perfect conditions for microorganisms like fungi to flourish. In your case, even though you opened all windows to air out the room, it might not have been enough given the persistent and worsening smell during cooler evenings. These cooler temperatures can increase relative humidity as warmer, moisture-laden air cools, leading to more condensation.

To address this issue effectively, it is crucial to maintain a consistent indoor relative humidity level below 60%. This can be achieved through proper dehumidification systems. For instance, a portable dehumidifier with a capacity of at least 35 liters per day could help in reducing the moisture content in your closet and throughout your home.

It’s also important to ensure good air circulation. Opening windows or using exhaust fans when drying clothes can prevent localized humidity hotspots. However, if you are still experiencing issues despite these measures, it is advisable to consult a professional environmental inspection company such as Saniservice. They can perform a thorough assessment of your property and provide tailored recommendations including the installation of dehumidifiers in key areas.

Remember that persistent mold growth not only impacts air quality but also poses health risks, especially for those with allergies or respiratory issues. Therefore, addressing this issue promptly is important for both comfort and safety.

If you require further assistance or have any questions regarding indoor environmental quality standards in the UAE, feel free to contact us at 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on March 3, 2026 3:16 am