Simple Solution Cat Extreme Stain and Odor Remover is a cleaning product that uses a Pro-Bacteria and enzyme formula to break down and eliminate cat messes like urine, feces, and vomit. It is designed to be safe for use on carpets, upholstery, and other water-safe surfaces and helps to prevent repeat marking by eliminating the odors. To use, you simply saturate the soiled area, let the solution sit for at least 10 minutes, blot the excess, and allow the area to dry completely before vacuuming.