Ok, I know the EPA has not registered any chemical for use on flex or ductboard, which is 95% of what our area has. Is there anything you can put in a fogger that helps or works completely?

We just got a truck mounted 4 cylinder super vacuum and compressor to run agitators and brushes and clean ducts. Yes I know many scammers are out there but that is not how we run. This machine can clean the best way possible when needed with care taken.