Environmental flea control is an essential part of keeping your pets free from unwelcome parasites and Beaphar Defest Household Flea Spray is the product of choice when fleas have already established themselves in your home. Apply to all rooms to which pets have had access to and combine treatment with regular vacuuming and washing of all pet bedding to eliminate fleas. Adult fleas will be killed within hours of application and over the course of several weeks this spray will break the flea life cycle and completely eradicate the unwanted pests throughout your home.