Diptyque 34 boulevard saint germain Hourglass Diffuser - An alternative to the candle, this unique, original object reinvents the world of perfume. Simply flip it over in a single movement to sock the wick in the center of the two glass sections, then place it on a table to ensure perfect air circulation. The fragrance takes around twenty minutes to flow through, in a soothing, hypnotic fashion, drop by drop. Without using heat or electricity, the scent stays intact and is released immediately, to enchant a room of up to 20 square meters.