Say goodbye to the scented candle. Scent branding has moved into the living room.
While decorators, fashion designers and celebrities have been using candles to brand themselves at least since the late 1990s — Sir Elton John once lent his name to scented rocks — it was less than a decade ago that hotels began using cold-air technologies to scent their public spaces. [...] Before long, the most unlikely places were being scented.
— From What Good Taste Smells Like, about scent diffusion systems for home use, at the New York Times.