Of all of the machines available to homeowners for cleaning carpets with commercial shampoo—including shampooing machines and buffers with solution-moistened pads attached—hot water extractors ...

Steam cleaning doesn’t leave residue behind, and it generally uses less water than shampooing ... on what type of carpet you have as well as the thickness of the pad underneath.

Deep cleaning helps remove dirt and grime from carpet fibers. There are several methods for deep cleaning: hot water extraction or steam cleaning, absorbent pad cleaning, and rotary shampooing.