Flea sprays are insecticides designed to eliminate fleas and their eggs from pets and home environments. They typically contain active ingredients that target the nervous system of fleas, leading to their death. These sprays can be used on carpets, upholstery, and pet bedding to help control flea infestations. When using flea sprays, it's important to follow the manufacturer's instructions for safe application. Some sprays are specifically formulated for use on pets, while others are meant for household surfaces. Regular use can help prevent future infestations and keep both pets and humans comfortable in their living spaces.