(CBS 5) – It’s a service that promises to clear the air in your home. In this Good Question: Do the air ducts in my home need to be cleaned out? Or is it a scam?

ANSWER: According to HVAC expert Kevin Commerford, you are wasting your money having your air ducts cleaned if you don’t completely seal your heating and air conditioning system beforehand.

Commerford said there are plenty of scams out there so beware. Heating and air conditioning systems that are not properly sealed will only suck in more dust and dirt and clients are often not told this. A properly sealed system should not need duct cleaning for at least ten years.

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