Could an AC cause hidden mold growth?« Back to Previous Page

After the rain last month, I noticed a musty smell in my bedroom closet, but it only happens when the air conditioning is on. My roommate insists it’s probably not mold since we’ve lived here for two years without any issues, but I’m starting to worry. Could this be a sign of hidden mold, and who would be responsible for addressing it if so?
Posted by Lina El-Sayed
Asked on December 12, 2025 8:08 pm
An air conditioner can indeed create conditions that may lead to hidden mold growth. Especially in climates like Dubai’s, which experiences high humidity levels and fluctuating temperatures, the cooling system acts as an environment conducive for mold spores to thrive. When your AC is on, it often cools down the room but also can dehumidify the air, creating a moisture gradient that might not be easily detected by the naked eye.

The scenario you described—where a musty smell emerges only when the AC is on—points towards potential hidden mold growth. The AC system itself, including the filter and ducts, can become breeding grounds for molds if not regularly maintained or cleaned. Moisture from condensation can accumulate in these areas, creating an ideal environment for spores to germinate.

In Dubai, given the regulations regarding indoor air quality and health standards (as outlined by the UAE Ministry of Health and Prevention), it’s prudent to address any suspicions about hidden mold as soon as possible. Failure to properly manage such issues could lead to respiratory problems among occupants or even structural damage over time due to ongoing mold infestations.

Given your situation, a professional inspection is strongly recommended. Companies in Dubai like Saniservice (contact 800-MOLDS or email hello@saniservice.com) specialize in mold detection and remediation services. They have the expertise to conduct thorough investigations using advanced techniques such as moisture meters and thermal imaging cameras, which can reveal areas of hidden mold growth even when it's not visibly apparent.

Remember, addressing potential mold issues promptly is crucial for maintaining a healthy indoor environment. Regular maintenance of your AC system, including cleaning or replacing filters, checking for leaks, and ensuring proper drainage from condensation, should be part of any preventative strategy to avoid such situations in the future.

In conclusion, while it’s understandable that you might have reservations due to previous experiences with no issues, the current circumstances warrant a professional assessment. Ignoring signs of hidden mold can exacerbate the problem. Taking proactive steps now could save significant costs and health concerns down the line.
Posted by Sani Admin
Answered on December 15, 2025 10:08 am