run along the seat frame 25 or be as a tubular element a direct component part of the seat frame 25 in this case the first end 61 can be part of the fastening system of the seat frame 25 to the floor 18 of the interior and thus at the same time provide a fluid tight connection to the supply air duct 14 and a mechanical fastening furthermore an outflow element 5 e can be disposed in the armrest 24 such an outflow element 5 e allows the passenger to influence the microclimate in the region of his seat so that the passenger can adjust his individual supply air supply and or an individual temperature at his seat in some embodiments of the invention a control device 7 can be provided in the armrest 24 with the control device 7 the passenger can individually influence the air quantity discharged from the outflow elements 5 of his seat 2 and or the air temperature and or the flow velocity and or the outflow direction fig3 shows one embodiment of an outflow element 5 the outflow element represented in fig3 has a roughly cuboid hollow body 53 of course the basic shape of the hollow body 53 is chosen only by way of example and can in other embodiments of the invention assume a different form within the scope of the invention modifications and changes can be made to the shape and number and arrangement of the openings in order to adapt the outflow element 5 to the respective installation situation at the.