Carpet Green Clean uses a bonnet style wand that applies a Green Soap Free Solution at a high rate of speed with a scrubbing head to loosen dirt, grease, and grime. This process uses a solution that is safe, effective, and contains no chemicals or solvents. It is safe odor free and free rinsing leaving no residue detergents behind. The solution is vacuumed off the hard surface at the same time, leaving it virtually dry. Hardwood floors contribute greatly to the atmosphere and aesthetic of your home, they are also an investment.