Frontline HomeGard is a household flea spray designed for use in your home and surrounding environments. It kills adult fleas and larvae in your home and prevents eggs and larvae developing there for approximately 12 months, providing enhanced year-round protection. An aerosol surface spray for use on carpets, cracks and crevices in flooring, pet bedding and soft upholstered furniture, to eradicate fleas and prevent re-infestation.