Overview (3) Heidi Klum was born in Bergisch Gladbach, a small city near Cologne, Germany, in 1973. Her career as a top fashion model and swimsuit star began almost by accident when, on a lark, she submitted photos to a model competition hosted by Petra, a young woman's magazine.
The National Air Duct Cleaners Association recommends getting your air ducts cleaned every three to five years. Ed Mack, owner of Air Duct Professionals in Lake Elsinore, California, says homeowners should consider doing it every two to five years, depending on their circumstances.
One of the best ways to know if your ducts or vents need to be cleaned is to just check them. Your eyes will be able to check for indications of mold, dust or pollen buildup in the ducts and vents. You might also be able to smell the presence of mold, which would be a clear indicator there is some in the ducts or vents.Ductwork will have some buildup of dust, since the return registrars pull air back in.ou might also be able to smell the presence of mold, which would be a clear indicator there is some in the ducts or vents. Ductwork will have some buildup of dust, since the return registrars pull air back in.