Shop for Cleaning Supplies at The Home Depot. Simple Green Carpet Cleaner is the safer choice for consumers who care about the environment inside of their homes. Its professional-strength formula deodorizes as it deep-cleans and safely removes tough stains such as: motor oil, grease, coffee, wine, chocolate, blood, lipstick, and much more. Non-toxic, non-allergenic, and biodegradable, Simple Green Carpet Cleaner also contains a special protection agent that helps maintain the stain resistance already found in most carpets, rugs and upholstery. Simple Green Carpet Cleaner brightens without bleach, is clean rinsing and has no added color or petroleum distillates. Its versatile, concentrated formula can be custom diluted to safely clean stains or used in hot water extraction and steam carpet machines.