Is odor from AC filter normal?« Back to Previous Page

After the heavy dust storms we had last week, I noticed a faint odor coming from the air filter in my bedroom AC unit. It’s been about two months since I replaced it, so that seems like a bit of an interval, right? Can someone tell me if this is normal or if I should replace it more frequently and maybe even handle cleaning it myself?
Posted by Amanda Hill
Asked on January 19, 2026 3:30 pm
0
Greetings! It's indeed unusual to experience an odor from your AC filter. In the UAE, specifically Dubai, we often encounter such issues due to the high frequency of dust storms and sand particles that can get caught in our HVAC systems. The presence of a faint smell could indicate that something more than just dust is at play.

Typically, replacing filters every 3-6 months should suffice for most standard residential units operating in Dubai's climate conditions. However, given your recent observation of an odor, it might be wise to consider the following steps:

Firstly, visually inspect the filter for any signs of mold or fungi growth which could give off that smell. Mold can thrive in damp environments and if present, it's important not to handle directly as it can spread. For such cases, professional inspection is recommended.

Secondly, ensure your AC unit has a proper drainage system to avoid water accumulation around the filter area, which could lead to mold growth. Check for any signs of moisture or water leaks nearby.

Thirdly, consider cleaning the evaporator coils and the air handler if you notice persistent odors after replacing the filter. Dust, dirt, and other particles can accumulate on these components over time leading to unpleasant smells.

Lastly, given the complexity of HVAC systems in Dubai's climate, it might be beneficial to contact a professional for an inspection. They will have the tools and expertise to identify any underlying issues that may not be immediately visible or easily cleaned by you.

Remember, if you experience persistent odors despite your best efforts, it could indicate a more serious issue like mold growth which can pose health risks. Don't hesitate to reach out to professionals at 800-MOLDS (800-66537) for assistance. We also offer services by emailing hello@saniservice.com.

Taking proactive steps now can save you from bigger issues later on, ensuring your indoor air quality remains optimal and safe.
Posted by Sani Admin
Answered on January 20, 2026 7:57 pm