# 1 Question I Get about what is in our Air Ducts

Shocking but true.

The dust that you see collecting on your TV, kitchen countertops, tables, windowsills, and on those picture frames that are so hard to get clean come mostly from dead human skin cells. That's right, we all shed more than 8 pounds (3.6 kilograms) of dead skin each year. 

It gets even grosser: Your home is also filled with trillions of microscopic life forms called dust mites that live off of your old dead skin.  

In other words, your home is filled with former bits of everyone who has lived in your home.

This then will collect in your air ducts and be recycled every time your system runs. 

Comet Air Duct Cleaning has earned a solid reputation and takes pride in knowing that we are undoubtedly one of the best residential and commercial air duct cleaning services in the Billings, Montana area 

We are a proud member of the Billings Chamber of Commerce, 

Plus we have an A+ rating with the BBB