Is musty smell and AC usage linked to mold?« Back to Previous Page

The AC in my apartment seems to be running more often lately, even though it’s not that hot outside. This morning, I walked into the bedroom where my son sleeps, and noticed a musty smell coming from under his door. It's only been noticeable for the past couple of days, but it’s really starting to bother me, especially with him coughing so much. Could this be mold or something else? What steps should we take to check and address this issue?
Posted by Samira Al-Rashid
Asked on January 20, 2026 2:18 am
The musty smell and increased AC usage can indeed be linked to mold growth within the apartment. In the UAE context, especially in Dubai, high humidity levels coupled with inadequate ventilation are common culprits for such conditions. Mold spores thrive in environments that provide a moist substrate and suitable temperature ranges - typically found inside buildings where condensation occurs or water damage has gone unattended.

First steps to address this issue include:

1. Assessing the Source:
Examine areas around your son's bedroom, particularly focusing on hidden spaces like under doors, behind walls, and in corners where moisture might accumulate. Look for any visible signs of water damage such as discoloration or peeling paint.

2. Checking AC Performance:
Increased AC usage can indicate high indoor humidity, which is a breeding ground for mold. Ensure that your air conditioning system is functioning optimally by cleaning filters and checking refrigerant levels. In Dubai's climate, it might be necessary to schedule regular maintenance checks with an HVAC professional.

3. Investigating the Musty Smell:
The musty odor you’re noticing could be indicative of mold growth. While some molds are harmless, others can produce allergens or irritants that exacerbate respiratory issues like coughing and sneezing. It's crucial to identify the source of this smell for accurate remediation.

4. Professional Inspection:
Given the specific concerns with your son’s health and the sudden onset of symptoms, it would be prudent to engage a professional environmental consultant or mold inspector. They can conduct thorough assessments using moisture meters and air quality tests to determine the presence and extent of mold growth.

5. Addressing Moisture Issues:
If mold is confirmed, addressing underlying moisture issues should be your priority. This might involve repairing any leaks in pipes or roofs, ensuring proper drainage around the building, and improving ventilation systems. In Dubai’s climate, maintaining appropriate indoor humidity levels (below 60%) can significantly reduce mold growth.

6. Implementing Remediation:
Once the source of moisture is controlled, remediation efforts should focus on removing contaminated materials, cleaning surfaces with approved biocides or cleaners, and properly disposing of waste. In Dubai, it's advisable to use products that are EPA-registered for mold control.

7. Preventive Measures:
To prevent future occurrences, consider installing dehumidifiers in high-risk areas like bathrooms and basements, scheduling regular cleaning, and ensuring all plumbing fixtures are leak-free. Maintaining good indoor air quality through proper ventilation is also key.

Remember, while you can perform initial checks and take remedial actions, for serious cases, professional assistance is highly recommended to ensure thorough and effective resolution of the issue. For further guidance or immediate support, do not hesitate to contact 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on January 21, 2026 5:49 am