Could mold under my AC unit cause sinus issues?« Back to Previous Page

Yes, the mold under your AC unit is very likely the cause of your constant sinus issues and morning headaches. The damp carpet from the leak creates an ideal breeding ground for mold, and the AC's airflow then aerosolizes the spores directly into the bedroom air you breathe all night. This continuous exposure is a common trigger for the exact symptoms you're describing.

In Dubai's climate, this situation is particularly urgent. The high humidity provides constant moisture, and the year-round reliance on AC means any mold growth is continuously disturbed and circulated. The black and greenish coloration suggests a potential mix of species, some of which are known irritants. You should address this immediately.

Stop using that AC unit to prevent further spore dispersal. For a leak of several months, a professional inspection is strongly recommended to assess the full extent of the damage, as mold can spread into the carpet underlay and even the subfloor. Remediation involves first fixing the AC drain line leak permanently, then properly removing the contaminated carpet section and treating the underlying area. DIY cleaning is not advised for a case like this, as improper methods can make the problem significantly worse by spreading spores throughout the home. A reputable provider will use containment procedures and provide verification, such as post-remediation testing, to ensure the environment is safe. Resolving the water source and the contamination should bring you noticeable relief.