Vehicle air conditioning and ventilation system equipped with an automatic controlled air freshening device

There is described an air conditioning and ventilation system (1) for a vehicle, equipped with an automatic controlled air freshening device (3), which has a perfume injecting device (11) for injecting one or more perfumes into the passenger compartment (2) of the vehicle, and an electronic central control unit (12) for controlling the perfume injecting device (11) to regulate perfume injection.