Could moisture from AC cause mold growth?« Back to Previous Page

After the rain last month, I noticed a greenish-brown substance growing on the walls of our bedroom. The AC in my apartment seems to be causing some moisture issues too, as the floor under it is always damp. My kids have been coughing and sneezing more than usual lately, which has me worried about mold affecting their health. Could this be a sign of mold growth, and what steps should I take to address it?
Posted by Majid Al-Ahmad
Asked on January 11, 2026 9:24 pm
Could moisture from AC cause mold growth? Yes, it is quite possible. In the UAE climate, particularly in Dubai where humidity can be high and temperatures fluctuate significantly between day and night, air conditioners play a significant role in maintaining indoor comfort levels. However, improper installation or operation of AC units can lead to moisture accumulation, which provides an ideal environment for mold growth.

In your scenario, it sounds like you're dealing with a situation where the AC unit is causing dampness beneath it, potentially leading to mold proliferation. This can indeed be detrimental not only to your home's aesthetics but also to indoor air quality and occupant health, especially given that your children are experiencing more frequent symptoms such as coughing and sneezing.

Firstly, it’s essential to understand the basics of mold growth: Mold thrives in warm, humid environments with sufficient moisture. AC units can indeed contribute to this environment if they’re not properly maintained or if there's a leak or condensation issue. In Dubai, where humidity levels are relatively high during certain times of the year, AC units must be regularly serviced to ensure they're functioning optimally and not contributing to excess moisture in your home.

Here are some steps you can take:
1. Inspect Your AC Unit: Check for any visible leaks or signs of condensation accumulation under the unit. Ensure that the drainage system is unobstructed.
2. Professional Inspection: Given the health concerns, it would be prudent to schedule a professional mold inspection. In Dubai, you should look for companies like Saniservice who can provide this service and also offer remediation if necessary. You can contact them via phone at 800-MOLDS (800-66537) or email hello@saniservice.com.
3. Ventilation: Ensure that your home has adequate ventilation to reduce moisture levels. Opening windows when it's safe and using exhaust fans can help.
4. Drying Out: Once identified, dry out the affected areas thoroughly. Mold spores can remain dormant for long periods until conditions are right for them to germinate again.

Remember, in Dubai, it’s crucial to stay updated with local regulations regarding indoor air quality and mold remediation. The UAE has strict health and safety standards that companies must adhere to when dealing with mold issues.

Acting promptly is key to preventing further damage and ensuring the health of your family. Don’t hesitate to seek professional advice to address this issue effectively.
Posted by Sani Admin
Answered on January 13, 2026 8:05 pm