When you light a candle and let the scent fill your room with a wonderful smell and the lit can burns for an hour on two.  You then blow out the candle and you get a strong burst of the scent.  This is due to the presence of the heavy smoke that emanates.  What if, instead of burning the candle, you can instead create the smoke.  Welcome to the Diri.  Using one of our devices, you will be able to get a constant light smoke stream of scent.  Depending on the device, you have control of the scent bursts.