The invention provides a fragrance delivery system comprising: a control unit for controlling a release mechanism to release at least one selected fragrance, said control unit comprising a selection unit for selecting said selected fragrance from at least two fragrances and controlling said release mechanism to release said selected fragrance, and a switching element for switching said release mechanism between an first state and an second state or vice versa, in which first state said release mechanism releases said selected fragrance at a higher rate than in said second state. The invention further provides a kit of parts comprising said device and a at least two fragrance reservoirs filled with a fragrance chemical. In addition, the invention relates to the use of a control unit for controlling a release mechanism to release a selected one of at least two fragrances in a fragrance delivery system, which control unit comprises a selection unit for selecting said selected fragrance and controlling said release mechanism to release said selected fragrance, and a switching element for switching said release mechanism between an active state and an inactive state or vice versa, and to the use of the present fragrance delivery system to deliver a fragrance to a space which is at least periodically occupied by an individual.Linvention concerne un système de diffusion de parfum comportant une unité de commande servant à commander un mécanisme de diffusion pour diffuser au moins un parfum sélectionné. Ladite unité de commande comprend une unité de sélection servant à sélectionner ledit parfum parmi au moins deux parfums et à commander ledit dispositif de diffusion pour diffuser ledit parfum sélectionné et un élément de commutation servant à commuter ledit mécanisme de diffusion dun premier état à un deuxième état ou vice et versa. Dans le premier état, ledit mécanisme de diffusion diffuse le parfum sélectionné à un débit plus élevé que dans le deuxième état. Linvention co
