When contractors discuss air ducts with customers, they often explain it in simple terms they’re likely to understand: Ducts are the home’s arteries and veins, and the furnace or a/c unit is the system’s heart. Air is circulated throughout the home, whooshing through the supply and return ducts, much like blood is pushed through the arteries and veins of the body, always traveling back to the heart to begin the journey again.
And, just as an infection can spread from one part of the body to another, so can contaminated air, which is why an increasing number of home and building owners are choosing to install ultraviolet (UV) products that improve IAQ by cutting down on the spread of allergens, mold, volatile organic compounds (VOCs), bacteria, viruses, and more.