Dust and dirt can collect in the air ducts in your home over time. When you use your heating or cooling system, air isn’t the only thing that travels through the ducts. The dust and dirt comes out too, collecting on your carpet and other fabrics in the home. Those black lines you see are called carbon filtration. Cleaning your duct work is the first step to a truly cleaner home and cleaner air.

How can you know if your duct work needs cleaning? Take a look at the edges of your carpets. If you see black lines along the edges, that’s usually a sign your air ducts are in need of a cleaning.