"James Robinson" wrote

It may simply be classification, but the EPA considers certain types of
Freon to be VOCs. Here is a link to a couple of web sites that list
VOCs, including various types of Freon as examples:

http://www.skcinc.com/cff/1676.pdf
http://www.airquality.lanl.gov/pdf/N...dVOCTable3.pdf

OK, I learned something new today. Good by me. ;-)