Could AC worsen a closet musty smell?« Back to Previous Page

After the rain last month, I noticed a musty smell coming from the corner of my bedroom closet. It's been there ever since, even after cleaning out everything in there. The AC seems to make it worse when it’s on. Has anyone else experienced this in their rental property?
Posted by Dieter Kowalczyk
Asked on February 18, 2026 4:32 pm
Absolutely, the air conditioning (AC) system can indeed exacerbate musty odors within a closet. In your case, it sounds like you're experiencing such an issue in your bedroom closet after encountering rain last month. This situation is not uncommon and can be attributed to several factors related to indoor environmental quality.

Firstly, the musty smell might stem from moisture or mold growth. Rain infiltration could have created microclimates within your closet that are conducive for mold proliferation. Even after cleaning out everything, if there's still residual dampness, this environment may continue fostering fungal growth which would explain why the odor persists.

The AC system in your property can indeed amplify these odors due to its function of recirculating air. When it operates, it draws in moisture-laden air from various parts of the house and circulates it, potentially spreading the musty smell throughout different rooms including your bedroom.

In Dubai, where humidity levels can fluctuate significantly, such conditions are particularly challenging for maintaining indoor air quality. The UAE's regulations on building codes and maintenance practices do not specifically address musty odors in residential properties, but given the impact they have on occupant comfort and health, it would be advisable to take proactive steps.

Firstly, you should inspect your closet for signs of water damage or mold growth. This can typically be done by visual inspection, although professional tools like moisture meters might provide more accurate readings. If you find any visible signs of mold, addressing this issue promptly is crucial as mold can produce harmful spores and emit strong odors.

Next, consider having a professional environmental assessment carried out. In Dubai, companies such as Saniservice (hello@saniservice.com or call 800-MOLDS / 800-66537) offer services that include mold testing and remediation. They can provide detailed reports on the sources of moisture and odor in your closet and recommend appropriate solutions.

Additionally, you might want to improve air circulation in your closet by ensuring proper ventilation or even using dehumidifiers to reduce moisture levels. Regular maintenance of your AC system, including cleaning filters and ensuring it is not drawing in damp air from outside, can also help mitigate the issue.

Lastly, if addressing these issues proves challenging on your own, contacting professionals for remediation could be a prudent step. They will have the necessary expertise to ensure that all sources of musty odors are effectively managed, thus improving the overall indoor environmental quality of your property and enhancing comfort for you and any other occupants.

Remember, while AC can worsen a closet's musty smell, addressing moisture issues and ensuring proper air circulation is key. If the problem persists despite these measures, seeking professional assistance would be highly recommended to ensure long-term resolution and peace of mind in your living space.
Posted by Sani Admin
Answered on February 20, 2026 12:19 am