Steam cleaning is a gentle method, which starts with a normal cleaning solution that is especially water. The vapor cleaning tools heats up this liquid to very high temperatures and then power deep into the carpet fibers through a specialized nozzle that converts it to steam. To be efficacious, you want to get this cleaning solution down to the backing of the carpet to be able to loosen the deep-set filth found there. The collection of the heat from the vapor and the normal cleaning solution will decrease the sticky properties of the filth and break it free from the effective carpet fibers.