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.
The air ducts in your home transfer hot or cold air from your heating and air conditioning system. Because you probably do not look inside these ducts often, they can become dirty with build-up and debris you might not realize exist. These contaminants can potentially enter your home and can be harmful to your health if the ducts are left dirty for too long. You can hire professional duct cleaners to clean the ducts, but you can save money by cleaning them yourself with the right tools.