Can AC mold cause our persistent cough and stuffy nose?« Back to Previous Page

Based on your description, it is highly probable that the symptoms you and your toddler are experiencing are directly caused by microbial contamination, specifically mold, within your air conditioning system. The damp, earthy odor is a classic indicator of mold growth, and the black, speckled substance around the vent is a visible confirmation.

In the UAE's climate, AC units are a prime breeding ground for mold. The constant humidity and the extreme temperature differential between the hot outside air and the chilled evaporator coils cause significant condensation. This moisture, combined with dust and organic debris, creates an ideal environment for mold spores to colonize. When the AC operates, it then aerosolizes these spores and microbial volatile organic compounds (mVOCs) throughout your living space, where they are inhaled.

The persistent stuffy nose and dry cough are common physiological responses to this continual inhalation of irritants and potential allergens. Infants and young children are particularly susceptible to these airborne contaminants.

This is not a situation to take lightly. DIY cleaning is not recommended, as it often disturbs the colony and can lead to a much wider dispersal of spores. According to UAE health and safety guidelines, a professional inspection and remediation are required for confirmed or suspected HVAC mold.

I strongly recommend you cease using the affected AC unit and contact a certified professional immediately. Our team at Saniservice specializes in HVAC hygienization and mold remediation. We use borescopes to inspect deep within ductwork and conduct air quality tests to identify the species and spore count. Our process involves contained removal, HEPA vacuuming, and application of EPA-approved biocides to ensure the system is safe. Please call us at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an inspection and protect your family's health.