an air purifier device includes a chamber defined by a side wall arranged to guide an air flow through the air purifier device . the air purifier device further includes at least one emitter electrode and at least one collector plate electrode arranged to ionize airborne particles . the at least one emitter electrode is arranged to extend from the side wall and inwards in the chamber and the at least one collector plate electrode is arranged to extend from the side wall and inwards in the chamber . the air purifier device enables the side wall to be manufactured from e . g . plastic , or other non - conductive or non - magnetic material . this in turn may enable a lower weight of the air purifier device and facilitated manufacturing , as the side walls of the chamber e . g . may be formed by plastic moulding just as many other parts of the air purifier device .