Is that smell from my AC unit harmful?« Back to Previous Page

After the recent heatwave, I noticed a strange musty odor coming from the air conditioning unit in my master bedroom. It’s been there ever since we turned it on full blast to cool down. The kids have also complained of sneezing and coughing more than usual. What could be causing this smell, and how can I prevent it from happening again?
Posted by Katarzyna Bakker
Asked on February 12, 2026 5:39 pm
The odor emanating from your air conditioning unit is indeed concerning and could be indicative of several issues. Firstly, the musty smell you're experiencing might stem from a mold infestation within the AC system or its ductwork. Mold thrives in warm, humid environments like those found in Dubai during the summer months, especially after a heatwave.

In the UAE, particularly in Dubai, air conditioning units are critical for maintaining comfortable indoor conditions due to the high temperatures and humidity levels. However, they can also become breeding grounds for microorganisms if not properly maintained. The complaints from your children regarding sneezing and coughing suggest that the mold could be producing allergens or spores which might irritate their respiratory systems.

To address this issue effectively, you should consider scheduling a professional inspection of your AC system by contacting a certified environmental remediation company like Saniservice at 800-MOLDS (800-66537) or by sending an email to hello@saniservice.com. They will be able to conduct a thorough assessment and, if necessary, perform a hygienization process to eliminate the mold.

In the meantime, here are some steps you can take:
1. Ensure that your AC unit is regularly cleaned and serviced by a professional every 6-12 months.
2. Check and clean or replace filters as recommended by the manufacturer.
3. Run your AC for at least three hours daily to maintain proper airflow and temperature control.
4. Open windows occasionally during non-heating seasons to allow cross ventilation, reducing humidity levels.
5. Use a dehumidifier in areas where mold is more likely to grow, such as bathrooms or kitchens.

Remember, it's crucial to address this issue promptly to prevent potential health hazards for your family and to maintain the integrity of your AC system. Regular maintenance can help avoid future occurrences.
Posted by Sani Admin
Answered on February 13, 2026 11:10 pm