I had my carpets (supposedly) cleaned by Oxi Fresh System. They hook you in by claiming to be environmentally friendly because they use about 2 gallons of water as opposed to 40. They basically spray a spot remover and do a cursory vacuum with a brush attachment. Imagine spraying a little concentrate on your underwear and vacuuming them. Would you wear them ?? Of course not because they would still be filthy !!!! I rented a rug doctor that same day and took out all the dirt the so called tech said could not be taken out because it was (under the fabric) !! I had bucket after bucket of dirty water and cleaned the carpet myself. But they are clever at Oxi - Clean. The company takes NO RESPONSIBILITY for the work of their Franchise Techs!! They don't stand behind their product because they know it doesn't work. I had an appointment for re-do but the guy never showed. When I inquired why I was told to find another company to clean my carpets !! I wasted $500.00 on these snake oil salesmen ! Don't believe me, rent a rug doctor after Oxi Clean is done and see all they leave behind. You have been warned.