A ventilation system for an interior room, the ventilation system comprising: - a first air suction device and a second air suction device; - a suction volume control device having a first airflow throttling unit, and a third airflow throttling unit; - a first air conduction pipe and a second air conduction pipe; - a central air conduction pipe; - a vacuum generating device; and - a control unit; wherein the first air suction device is assignable to a first suction volume, and the second air suction device is assignable to a second suction volume; - means configured to send a signal to the control unit, which signal determines a ventilation requirement of the first suction volume and the second suction volume, wherein the first airflow throttling unit is assigned to the first air conduction pipe and is adapted to throttle an airflow through the first air conduction pipe; wherein the vacuum generating device is adapted to generate negative pressure in the first air conduction pipe and in the second air conduction pipe so that the first suction volume can be removed via the first air suction device by suction, and the second suction volume can be removed via the second air suction device by suction; and wherein the first air conduction pipe and the second air conduction pipe are connected to the central air conduction pipe and are adapted to provide the airflow to the central air conduction pipe; wherein the vacuum generating device is adapted to generate negative pressure in the central air conduction pipe so that in the first air conduction pipe and in the second air conduction pipe negative pressure is generated; wherein the third airflow throttling unit is adapted to throttle an airflow in the central air conduction pipe; wherein the control unit is adapted to receive and evaluate the signal from the means configured to send a signal to the control unit, to select the suction volume control device having the first and the third airflow throttling unit, and to control the first airflow throttling unit and the third airflow throttling unit based on the ventilation requirement so that the airflow from the first air suction device to the first air conduction pipe is controllable with the first airflow throttling unit, and the airflow in the central air conduction pipe is controllable by means of the third airflow throttling unit. - a first air suction device and a second air suction device; - a suction volume control device having a first airflow throttling unit, and a third airflow throttling unit; - a first air conduction pipe and a second air conduction pipe; - a central air conduction pipe; - a vacuum generating device; and - a control unit; wherein the first air suction device is assignable to a first suction volume, and the second air suction device is assignable to a second suction volume; - means configured to send a signal to the control unit, which signal determines a ventilation requirement of the first suction volume and the second suction volume, wherein the first airflow throttling unit is assigned to the first air conduction pipe and is adapted to throttle an airflow through the first air conduction pipe; wherein the vacuum generating device is adapted to generate negative pressure in the first air conduction pipe and in the second air conduction pipe so that the first suction volume can be removed via the first air suction device by suction, and the second suction volume can be removed via the second air suction device by suction; and wherein the first air conduction pipe and the second air conduction pipe are connected to the central air conduction pipe and are adapted to provide the airflow to the central air conduction pipe; wherein the vacuum generating device is adapted to generate negative pressure in the central air conduction pipe so that in the first air conduction pipe and in the second air conduction pipe negative pressure is generated; wherein the third airflow throttling unit is adapted to throttle an airflow in the central air conduction pipe; wherein the control unit is adapted to receive and evaluate the signal from the means configured to send a signal to the control unit, to select the suction volume control device having the first and the third airflow throttling unit, and to control the first airflow throttling unit and the third airflow throttling unit based on the ventilation requirement so that the airflow from the first air suction device to the first air conduction pipe is controllable with the first airflow throttling unit, and the airflow in the central air conduction pipe is controllable by means of the third airflow throttling unit. wherein the first airflow throttling unit is assigned to the first air conduction pipe and is adapted to throttle an airflow through the first air conduction pipe; wherein the vacuum generating device is adapted to generate negative pressure in the first air conduction pipe and in the second air conduction pipe so that the first suction volume can be removed via the first air suction device by suction, and the second suction volume can be removed via the second air suction device by suction; and wherein the vacuum generating device is adapted to generate negative pressure in the central air conduction pipe so that in the first air conduction pipe and in the second air conduction pipe negative pressure is generated; wherein the third airflow throttling unit is adapted to throttle an airflow in the central air conduction pipe;