I did not remove the seats or the carpet, it was all done while still intact. Since I transport 3 dogs, my wife and 20 month old back and forth every weekend to our lakehouse, the amount of dog hair was insane, first step was not only to vacuum, but to groom the carpeting with a brush he had which brought up all the hair which was imbedded within the carpet fibers. Some insanely powerful backpack vacuum was used that destroys the dyson i own. Blueline is company, Vortex is the model of the carpet cleaning machine. it is an entire truck with pumps, hoses, and other cool sh*t inside of it that I have no idea what it does. Blueline has merged with saphire scientific, so it may be under that in Google. The dampness level was very minor and it dried quickly, no smell at all. The amount of dirt that came out of the door side panels after 11 years with no cleaning was pretty nuts. He also used a HOT water power washer on the weathertech mats I have, and they instantly turned from black back to tan. I've hit them before with Simple Green, a regular power washer, nothing worked. But the hot power wash did the trick. Any of y'all ever make it to this part of the country Im sure he would be happy to clean your vehicles too.