Is mold in chiller unit causing kids' coughs?« Back to Previous Page

After the rain last month, I noticed a musty smell in the basement of our apartment, especially when the air conditioning is on. My kids have been complaining of coughs and stuffiness, which has me worried it might be due to mold in the chiller unit down there. Has anyone experienced similar issues or know how to check if the mold chiller needs maintenance?
Posted by Jacob Wright
Asked on February 23, 2026 2:26 am
Is mold in chiller unit causing kids' coughs?

Indeed, it is possible that the musty smell and the symptoms your children are experiencing could be linked to a mold issue within the chiller system. Mold growth in air conditioning units can release spores into the air when the unit is activated. These spores, along with other irritants from decomposing mold, can lead to respiratory issues such as coughing, stuffiness, and exacerbation of asthma or allergies.

In Dubai/UAE, it's crucial to maintain a strict environment to prevent mold growth due to the humid climate. Regular maintenance checks are highly recommended to ensure optimal performance and hygiene of your chiller unit. Here’s what you can do:

1. Visual Inspection: Start by conducting a visual inspection of the chiller unit for any visible signs of moisture, discoloration, or mold growth on the coils, ducts, or other components.

2. Drying Processes: If there are indications of water damage or persistent condensation, it’s essential to thoroughly dry out these areas. Use desiccants or dehumidifiers if necessary.

3. Professional Cleaning: Engage a certified HVAC (Heating, Ventilation, and Air Conditioning) technician for thorough cleaning. They should clean the interior of the chiller unit, particularly focusing on condenser coils, filters, and drip pans where mold is most likely to grow.

4. Moisture Management: Ensure that your air conditioning system has adequate drainage to prevent water accumulation. Regularly check and clear any blockages in the drip pan or condensate line.

5. Filter Replacement: Replace HVAC filters regularly as recommended by manufacturers, especially if they appear dirty or have been exposed to high humidity environments.

6. Dehumidification Systems: Consider installing a dehumidifier in the basement area where your chiller unit is located. This can help maintain optimal humidity levels (below 50%) and reduce the risk of mold growth.

7. Regular Inspections: Schedule periodic inspections by professionals to ensure that no new issues are arising due to changing environmental conditions or wear and tear on components.

If you suspect that your children’s health issues may be related to mold exposure, it is wise to consult a medical professional for an accurate diagnosis. Additionally, calling 800-MOLDS or emailing hello@saniservice.com can connect you with experts who specialize in mold remediation services tailored to the UAE standards.

Remember, prevention and proactive maintenance are key to avoiding such issues. Stay vigilant and take necessary measures to keep your air conditioning system clean and healthy.
Posted by Sani Admin
Answered on February 25, 2026 12:48 pm