In combination with ductwork cleaning, we also sell and install a range of indoor air high-quality products, together with: Smaller sized spherical ducts made from fiberglass, flexible plastic, or lightweight metallic bend and twist through the flooring, walls, and ceilings to provide air to the various rooms of the house. https://directory-webs.com/listings12812590/5-essential-elements-for-air-duct-cleaning