Upper Fifth Diffuser

A boxed room-scent diffuser with a bundle of pale reeds standing in a glass bottle.

This clear glass reed diffuser is by Ralph Lauren. A narrow neck on a diffuser bottle limits how quickly the oil evaporates, which is one reason a bottle can scent a room for weeks. Tapered clear glass bottle holding golden liquid, topped by a black collar and a fan of thin, light-colored reeds.

Smells like a plan, even from the photograph.