Is AC causing mold-related coughing and asthma flare-ups?« Back to Previous Page

After the intense heat wave we had last month, I noticed a persistent dry cough starting in the evening when we turn on the air conditioner. The smell coming from it is quite strong and metallic-tasting, which worries me especially since my asthma has been acting up more frequently. My family doctor suggested checking for mold or other allergens. Have anyone else experienced similar issues with their AC units during such hot weather, and what steps can we take to prevent this from happening again?
Posted by David Martin
Asked on January 2, 2026 5:14 pm
Yes, AC units can indeed be the source of mold-related coughing and asthma flare-ups. The intense heat waves we experienced last month certainly create ideal conditions for mold growth within air conditioning systems. High humidity coupled with warm temperatures can lead to moisture accumulation, providing a perfect environment for molds to flourish.

In Dubai/UAE, the specific climatic conditions during extreme weather events like those recently experienced can exacerbate indoor environmental issues such as mold and allergens. This is especially concerning given that the UAE has stringent building codes but does not always guarantee full compliance in all structures or maintenance practices.

It's crucial for individuals experiencing persistent symptoms like a dry cough, particularly triggered by turning on the AC during heat waves, to investigate further. The metallic taste you describe could indicate the presence of certain types of molds which can release spores that are highly allergenic and irritant. Asthma sufferers should be especially vigilant in these scenarios.

To address this issue effectively, consider a few steps:
1. Professional Inspection: Contacting an environmental inspection company like Saniservice would be advisable to conduct a thorough assessment of your AC system for any signs of mold growth or other contaminants.
2. Regular Maintenance: Ensure that your air conditioning units are serviced regularly according to manufacturer guidelines and local regulations. This includes cleaning filters, inspecting condensation trays, and checking for any leaks.
3. Dehumidification: Consider installing dehumidifiers in areas prone to high humidity levels, such as bathrooms or basements, to reduce moisture content which can encourage mold growth.
4. Air Purification: Utilizing air purifiers with HEPA filters can help remove airborne contaminants including mold spores from the indoor environment.

In conclusion, while it's important not to overlook any symptoms during extreme weather events, taking proactive steps such as those mentioned can significantly mitigate risks associated with AC units and improve overall indoor environmental quality. Remember, maintaining good air quality is crucial for health, especially for those with respiratory conditions like asthma.
Posted by Sani Admin
Answered on January 4, 2026 2:01 am