For all of Time! This is a delicate and sophisticated blend of Sandalwood and Patchouli (a memory of the late sixties and early seventies nostalgia fans) No flame so can leave unattended Last for weeks and weeks Once the Scent has all been Diffused you can Refill the bottle with our Blended Perfumes and Renew the Reeds at any time you fancy. Manufactured by Lily-Flame Heart of Somerset, UK.