for beautification, and the removal of stains, dirt, grit, sand, and allergens can be achieved by several methods, both traditional and modern. Clean carpets are recognized by manufacturers as being more visually pleasing, potentially longer-lasting, and probably healthier than poorly maintained carpets.
Hot water extraction equipment may be a portable unit that plugs into an electrical outlet, or a truck mount carpet cleaner requiring long hoses from the truck or trailer. Truck mounted equipment may be used where electricity is unavailable (e.g. if electrical service was terminated). Truck mount carpet cleaning may be unsuited to premises distant from a driveway or road, and hoses may need to pass through windows to reach upper floors of a building. Hoses needed for truck mount and professional portable carpet cleaning may present an inconvenience or tripping hazard to users of hallways, and pets or children can escape through doors that must be left ajar for hoses. Heated or air conditioned air will also escape from buildings when doors are left open for hoses, potentially creating a significant waste of energy. Truck mounted carpet cleaning equipment minimizes noise in the room being cleaned, but truck mounted carpet cleaning equipment may cause noise and air pollution offensive to neighbors, and may violate anti-idling bylaws in some jurisdictions. However, truck-mounted cleaning is much faster than portable equipment, and extra heat and power can give faster drying times.
Extraction is, by far, the most important step in the hot water extraction process. Since the hot-water extraction method uses much more water than other methods like bonnet or shampoo cleaning, proper extraction and air flow are critical to avoid drying issues. Drying time may also be decreased by extra use of fans, air conditioning, and/or outdoor ventilation.