The injection-extraction method is carried out using a specific machine called an injector extractor for rugs and carpets. You can find this special machine for sale or rely on a cleaning company for a complete cleaning of your interior and your hardest-to-clean items. The injection-extraction machine works by spraying a special, non-foaming cleaner suited to the machine, which is spread over the carpet, then sucked back into the machine again. This method, which cleans then sucks the product up right after, ensures a deep cleaning of the natural or synthetic fibres of your carpet.