Designed as a celebration of the bare essentials, Tom Dixon's 'Fire' diffuser is inspired by the medieval alchemist and philosopher's pursuit to reduce matter to just four simple elements. Conjuring up scorched timber and hot tarmac, it's scented with notes of Cypriol Oil, Musk and Amber and housed in a mouth-blown glass vessel. Flip the charcoal stick a couple of times a week to maintain the intensity of the aroma.