Beaphar Flea Spray is a product that helps combat fleas and larvae inside your home. Contrary to common belief, 95% of a flea infestation is located in your cat or dog's immediate surroundings and exists in the form of flea eggs and larvae. An infestation can be prevented by treating this area. Beaphar Carpet Spray works for up to 14 days, depending on the severity of the infestation.