Abstract: A dispenser for a volatile aromatic substance is provided which includes a closed container formed from a single blank of folded sheet material in which the aromatic substance is deposited. The blank is folded to form a plurality of coacting interior and exterior walls, one of the walls having a tab form which is broken along a line of weakness to expose at least one vent passage in an underlying interior wall through which the vapors of the aromatic substance may pass. The tab form is hingedly connected to the blank so that it will not be removed therefrom and in one embodiment, coacts with a vent passage so that the tab form is displaced from underlying interior walls to modulate the circulation of vapors flowing from the vent passages. A hermetic coating is provided to preserve the shelf life of the container, including the aromatic substance deposited therein.