Since you have reported the persistent AC leak twice, you have a documented record of notifying them of the issue that led to the mold growth. The landlord’s failure to perform a permanent repair directly caused the problem. This is a clear case of neglect on their part to uphold their legal duty of maintenance.

For immediate action, send a formal written communication (email is best for a paper trail) to your landlord or property manager, reiterating the history of the leak and including clear photos of the extensive mold growth. State that the damp conditions and biological growth are impacting your health and the property’s integrity. This formal notice strengthens your position.

Given Dubai’s high humidity, mold can spread rapidly through spores, contaminating the air and your belongings. Do not attempt to clean a large patch yourself, as improper methods aerosolize spores. A professional inspection is critical to assess the full extent of the damage behind walls and to provide a certified report, which can be used to formally request remediation from your landlord. The goal is to identify the moisture source, contain the affected area, and properly remove the contamination.