AIR TREATMENT DEVICE

The present invention provides an air treatment device (100) for a vehicle, especially utility vehicle, wherein the air treatment device (100) comprises: a housing structure (102) having a connecting neck portion (104), an air treatment cartridge (108) being constructed to be substantially axially symmetric relative to a central axis (cAx) and being connected or connectable to the housing structure (102), wherein the air treatment cartridge (108) has a coupling neck portion (110) configured to connect or be connected to the connecting neck portion (104) of the housing structure (102), wherein, when the air treatment cartridge (108) is connected to the housing structure (102), the coupling neck portion (110) and the connecting neck portion (104) are arranged to be eccentric relative to the central axis (cAx).