Johnsons house flea spray provides protection against fleas throughout your home and keeps your home free from fleas adult fleas dont just live on your pets skin but actually spend most of their time and lay their eggs on your carpets and soft furnishings and especially your pets bedding infestations are most likely to occur during the warm summer weather but can happen any time and your pet is always subject to catching fleas using johnsons house flea spray extra guard will kill adult