Musty odors often indicate the presence of mold or mildew growth, which thrive in damp conditions. In Dubai, where the climate can be quite humid, especially during certain seasons, it’s essential to ensure that such smells are addressed promptly and thoroughly. The situation you’re experiencing is concerning not just for your immediate comfort but also for potential health risks associated with prolonged exposure to mold.

Given the duration of the smell (since November) and its proximity to your bedroom, I would strongly recommend seeking a professional inspection to determine the cause of the odor. According to UAE regulations, landlords are generally responsible for maintaining the property in good condition, which includes addressing any issues that might lead to unpleasant odors or health hazards.

Here’s what you can do next:

1. Document the Issue: Take detailed notes and possibly photos to document the extent of the smell and its source. This information could be useful during your interaction with the landlord.

2. Contact Your Landlord Again: Since they have acknowledged the issue but haven’t taken action, it might be time for a more firm request or even formal communication. Provide them with a timeline by which you expect action to be taken.

3. Consider Hiring Professionals: If the situation persists and your landlord is unresponsive, consider hiring an independent environmental inspection company in Dubai. Companies like Saniservice (you can call 800-MOLDS or email hello@saniservice.com) offer professional services that can help identify the source of musty odors and suggest remediation measures.

4. Addressing Humidity Issues: In addition to seeking professional help, consider using dehumidifiers in affected areas. Ensure your air conditioning system is functioning optimally as well. Proper ventilation is crucial for reducing humidity levels and preventing mold growth.

5. Health Considerations: Prolonged exposure to musty odors or damp conditions can lead to respiratory issues and other health problems, especially if there’s underlying mold present. If you start experiencing symptoms like coughing, wheezing, or nasal congestion, consult a healthcare provider.

Remember, dealing with musty odors requires prompt action to prevent further deterioration of your living environment and potential health risks. By taking these steps, you can ensure that the issue is properly addressed and mitigated.