What Causes Mold Around Air Vents?
Cold supply grilles collect condensation when humidity is high. Damp drywall then supports growth. Dark streaks alone are not proof, so check the moisture pattern.
Breathe Cleaner Air
Clean Ducts. Fresher Air.
Rachel Foster
Rachel Foster focuses on mold-related HVAC topics and indoor air concerns. Her articles explain where mold can appear in ductwork and vents and what homeowners should know about inspection and cleaning.
Blogs by Rachel Foster