Abstract: A fragrance dispenser, having: a housing defining an air inlet at a bottom of the dispenser and including a cartridge basket at a top of the dispenser; a cartridge removably disposed within the basket, the cartridge including a cartridge housing defining an air inlet at its bottom and an outlet at its top, and including a tray stack of circular trays configured the same as each other, each of the circular trays having at least one bin configured to receive a fragrance member; a tray drive shaft within the cartridge configured to sequentially rotate each of the trays about a tray stack center; a drive unit coupled to the tray drive shaft; and an air intake unit that draws air into the air inlet of the dispenser, into the air inlet of the cartridge, through the cartridge, and out of the air outlet of the cartridge, while the trays rotate.