And they can't be cleaned with pads or crb machines or low moisture technics. Read it and stop saying your method is better. No method is acceptable to the EPA. If you tell your customers you cleaned their carpet ---you are a liar according to the EPA.
http://www.cleanfax.com/articles/104376-disinfecting-and-sanitizing-carpet
http://www.cleanfax.com/articles/104376-disinfecting-and-sanitizing-carpet