Millions of pounds of pollution enter our air every day from things like cars, factories, and power plants. Dirty air ducts can be a major source of this pollution. Air ducts are often too small to clean properly, meaning that they can regularly contain levels of pollution many times higher than the legal limits. In some cases, dirty air ducts are also a potential source of mold and other harmful contaminants. 

Air ducts are an important part of any home or building, but they can also be a source of harmful air pollution. It’s important to know what’s inside your ducts so you can protect yourself and your family. Duct cleaning is one way to improve the air quality in your home or office. It’s a simple and affordable way to reduce the amount of harmful pollutants in the air. 

1. Biological sources: Bacteria and viruses 

According to the …