On a device for generating a pulsating gas column (4) for the superposed high-frequency jet respiration, a first connection (14) for a low-frequency respiratory gas flow provided by a respiratory device (1), a first jet nozzle (15) associated with the first connection (14), a first venturi body (18) arranged downstream of the first jet nozzle (15), a second connection (20) for a high-frequency respiratory gas flow provided by a respiratory device (1) and a second venturi nozzle (24) arranged downstream of the second jet nozzle (21) are provided, wherein the first venturi body (18) and the second venturi body (24) are associated with a common connection (32) for a respiratory tube.