The diptyque hourglass diffuser brings back the visionary world captured in perfume. As much a visual manifestation as one of smell, it is easy and intuitive to use, requiring no energy, needing no special care. It is entirely distinct from modern technologies: Simply turn the object over to begin a fragrance cycle of about twenty minutes. The refill hourglass diffuser Figuier allows to extend the unique experience of this atypical diffuser. 2.5 oz.