The Bissell Pet Stain & Odour formula works with all Bissell upright carpet cleaners to remove tough pet messes and tough pet odours. It also works to remove smells left from stains like cat urine. This formula is safe to use on carpets, area rugs, upholstery, and similar soft surfaces. It's also safe to use around kids and pets when used as directed. Plus, it contains biodegradable detergents without any heavy metals, phosphates or dyes, meaning it's earth friendly. The ingredients have been carefully evaluated by the U.S Environmental Protection Agency to earn the agency's Safer Choice label, meaning it's safer for the people and pets in your home and better for the environment as a whole.