With area rugs you have to be careful when cleaning. This area rug looks synthetic so the method he is using should be ok depending on what the customer wants out of the service. I would never mix chemical inside the customers home. In case i spill some i can create possible secondary damages. Encapsulation carpet cleaning is a good way to clean but i always prefer a deep clean with truck mount and my other 6 step process. If you or anyone you know is looking to get their carpet or tile cleaned please let us know.