The invention relates to a device (10) for treating goods (14) with the aid of an electric discharge in a receiving chamber (13) for the goods, which is defined by a wall (11, 1 la, 1 lb, 12a, 12b, 12c, 12d, 12e) made of a dielectric material having at least two electrodes (16a,16b) arranged on the outer side thereof (15). The invention is characterized in that at least one counter-electrode (21) is coupled in a capacitive manner to both of the outer electrodes on the inner side (20) of the wall (11).
