To make utilizable master ribs for the purpose for exchanging plural aromatics so as to enjoy plural aromas, or the like by constituting each of master ribs of a hollow cylinder opening on the side of a free end and a blocking body for blocking an open end part and detachably engaging the blocking body with the cylinder.

By housing an article to be housed in the dish-formed part 32, inserting the part 32 into a constitution lower cylinder body 10 from a substrate 1 and a coating body 2 and blocking an open end 10a with a lid part 31, a master rib 40 functions as a housing case for an article to be housed. As the article to be housed for housing in the part 32, an absorbing paper 30, etc., cut off into a shape in a just size for housing in the part 32 can be used. By infiltrating a desired aromatic into this paper 30, an aroma from the paper 30 is diffused to the outside via the trough hole 31a of the part 31 and a through hole 13 provided at the substrate 1. Thus, every time of using this fan, good smell is spread around and the fan can be used as a portable aromatic device.