Using a rotary buffing machine (150-200rpm) and soft bonnet pads made from either synthetic, cotton or microfibre material are placed on the rotary machine. The carpet is sprayed with either a bonnet mopping or an encapsulation chemical and worked over using the rotary and bonnet pads, the dirt is transferred to the pad which will be laundered afterwards. There again this is considered as a maintenance system or used in conjunction with other system to achieve superior results. It is not suitable for twist pile wool carpet as it will distort the pile

This system can be used within multiple environments and utilises a rotary buffer machine (usually 150-200rpm) with a soft bristle brush and a solution tank. The diluted detergent is fed through the solution tank onto the carpet this is then brushed through the carpet fibres. The carpet will need vacuuming afterwards to remove detergent residues, however with the advancements of chemicals there are encapsulation detergents that do not require immediate vacuuming but can be vacuumed when dry to remove the crystallised dirt particles.

It is often termed as steam cleaning, carpet washing or extraction cleaning. The basic process involves spraying water through the carpet fibers with a detergent and then vacuuming the dirty water out of the carpet, this is all done using a wet extraction machine. Hot water extraction machines come in various shapes and sizes with varying capabilities, these can range from budget small machines that will cope with small spillages and cleaning small areas to large truck mounted machines that have phenomenal vacuuming and pressure hoses to deliver hot water. It can be a very effective method when used correctly with the right chemicals