(Fleavac) FleaVac all-natural kill pellets turn your vacuum into a flea killing machine. The natural essential oils in FleaVac pellets are completely harmless to people and pets, but are quickly toxic to fleas at any stage of life. Simply add the contents of one FleaVac Kill Pellet puck to your vacuum bag or canister; using your attachment hose to vacuum the pellets is quick and easy. Vacuum flea infested areas, including carpets, furniture, pet bedding and even your pet. FleaVac pellets remain effective until you empty the bag or canister. Safe, easy and environmentally friendly.