Can black mold from AC cause ongoing sinus issues?« Back to Previous Page

The AC in our bedroom closet has been leaking for a while and now we’ve found black spots spreading on the back wall and our shoes. My husband has had a constant stuffy nose and a cough that won’t go away for over a month, and I’m starting to worry it’s connected. Can anyone recommend a reliable mold inspection company that can test the air quality and tell us how serious this is?
Posted by Richard Garcia
Asked on April 8, 2026 6:58 pm
Yes, absolutely. Black mold, more accurately referred to by its genus Stachybotrys chartarum, is a known irritant and toxin producer that can directly cause the sinus issues you are describing. The constant stuffy nose and persistent cough in your husband are classic symptoms of mold exposure, which acts as a powerful allergen and irritant to the respiratory tract.

In the UAE's climate, this is a common and serious issue. The high ambient humidity, combined with condensation from air conditioning systems, creates the perfect breeding ground for mold. An AC unit that has been leaking provides the constant moisture necessary for colonies to establish themselves and proliferate, often within the ducts and drip pans, spreading spores throughout the enclosed air space.

The black spots on the wall and your shoes are a visible confirmation of a significant infestation. However, the real danger often lies in the airborne spores and mycotoxins you cannot see, which are being circulated every time the AC unit operates. This continuous exposure can lead to chronic allergic rhinitis, sinusitis, and respiratory distress, particularly in individuals with sensitivities or compromised immune systems.

This is not a situation for DIY assessment or cleaning. Disturbing the mold without proper containment can aerosolize a massive amount of spores, drastically increasing exposure. A professional inspection is critical. Certified specialists, like our team at Saniservice, will conduct a comprehensive assessment that includes air quality sampling and surface swabs. This identifies the specific species present and quantifies the spore count in your breathing air, which is essential for determining the severity and crafting an effective remediation protocol.

For a definitive diagnosis of your air quality and to protect your health, I strongly recommend a professional inspection. Please call us at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an assessment.
Posted by Sani Admin
Answered on April 10, 2026 1:21 pm