Abstract: The present invention comprises a kit for assembling a passive air freshener comprising fragranced sail crystals. In the preferred form, the kit minimally comprises: 1) a package containing a plurality of fragranced salt crystals; 2) a container with an opening for placing said crystals therein, said container defining an enclosed space having a height/width ratio of from about 0.5 to about 3; and, 3) a carton for containing both the package of crystals and the container, where the carton preferably has a viewing window that displays at least the decorative aspects of the container design to potential purchasers. The kit may also include instructional literature and optional lighting source.