Is a musty AC smell harmful to my family's health?« Back to Previous Page

After the intense heatwave last month, I noticed a persistent musty smell coming from the air conditioning unit in our master bedroom. The AC has only been making strange noises lately, and it seems to struggle more with cooling the room than before. My kids have been coughing a lot, and I suspect it might be related to the air quality inside the house. How urgent is it to get this checked out?
Posted by Emma Bianchi
Asked on March 1, 2026 1:01 pm
A musty smell from your AC unit can indeed be alarming and potentially harmful to the health of your family. In the context of dubai and uae, where air conditioning systems are nearly indispensable due to the climate, it’s critical not to overlook this issue.

Firstly, let's consider the source of that musty odour: it likely indicates a buildup of mold or mildew within the AC unit. Mold thrives in warm, humid environments—conditions that are unfortunately common for air conditioning systems left uncleaned for prolonged periods. The UAE, especially during summer months, experiences high humidity levels, which can exacerbate this problem if your AC isn't properly maintained.

The musty smell could be a direct result of mold growth or it might signify other issues such as dust accumulation, which can also affect air quality and lead to respiratory problems. Children are often more susceptible to these kinds of irritants, given their smaller lungs and developing immune systems. Therefore, the coughing you've noticed in your kids could indeed be related to poor indoor air quality.

In terms of health concerns, mold spores are known allergens that can trigger asthma attacks and worsen respiratory conditions. Exposure over time can also lead to more severe symptoms like chronic bronchitis or even fungal infections. The UAE’s Building Regulations 1029/02 stipulate the importance of regular maintenance for HVAC systems, including periodic cleaning to prevent such issues.

It is highly recommended that you seek professional inspection and remediation services immediately. Companies like Saniservice (you can reach them by calling 800-MOLDS or emailing hello@saniservice.com) specialize in such cases and will be able to assess the extent of any contamination, clean the unit thoroughly, and provide guidance on maintaining a healthy indoor environment.

While waiting for professional help, consider temporarily increasing ventilation where possible. This might involve opening windows (if safe to do so), especially during cooler times of day when outdoor air quality is better. Using HEPA filters in your AC units can also help capture more allergens and particulates from the air.

Remember, addressing this promptly isn’t just about clearing up a smell but ensuring the health of yourself and your family within the home environment.
Posted by Sani Admin
Answered on March 4, 2026 2:43 am