Whilst filthy ducts don’t automatically suggest harmful air in your home, school or office, they may add to more substantial health issues or harbor contaminants which could lead to severe complications for individuals with respiratory health ailments, autoimmune Issues, or allergy symptoms. Picture: Tom Fenenga for Bob Vila Regardless of https://www.google.com/maps/d/edit?mid=1ggA53P2cCx3FGFhJ0FNkARBC631vXFc&usp=sharing