Module array of a plurality of plasma generator modules for generating a physical plasma by dielectric barrier discharge at atmospheric pressure, wherein the plasma generator modules each comprise - two linearly elongated electrodes , - at least one of which is provided with a dielectric barrier and - which extend parallel to one another at a lateral electrode distance ; - connection devices for connecting the electrodes to a high voltage source ; and - two 2-dimensional gas-guiding elements configured for guiding a working gas between the electrodes ; wherein a slit-shaped mouth of a suction channel adjoins at least one of the two electrodes of the respective plasma generator module at its outer side facing away from the other electrode , wherein the suction channel , at an outer side of the gas-guiding element connecting to the at least one of the two electrodes , extends over this gas-guiding element, wherein the plasma generator modules are each delimited by a module housing laterally along the electrodes and transversely to the electrodes , wherein the electrodes are each arranged at a bottom side of the module housing , wherein the module housings of the plurality of plasma modules are provided with fixation devices and fixed to one another or to a common module frame by means of the fixation devices , and wherein the plurality of plasma modules are arranged side by side along the electrodes and transversely to the electrodes , and offset in such a way that they partially overlap along the electrodes . wherein the plasma generator modules each comprise - two linearly elongated electrodes , - at least one of which is provided with a dielectric barrier and - which extend parallel to one another at a lateral electrode distance ; - connection devices for connecting the electrodes to a high voltage source ; and - two 2-dimensional gas-guiding elements configured for guiding a working gas between the electrodes ; - two linearly elongated electrodes , - at least one of which is provided with a dielectric barrier and - which extend parallel to one another at a lateral electrode distance ; - at least one of which is provided with a dielectric barrier and - which extend parallel to one another at a lateral electrode distance ; - connection devices for connecting the electrodes to a high voltage source ; and - two 2-dimensional gas-guiding elements configured for guiding a working gas between the electrodes ; wherein a slit-shaped mouth of a suction channel adjoins at least one of the two electrodes of the respective plasma generator module at its outer side facing away from the other electrode , wherein the suction channel , at an outer side of the gas-guiding element connecting to the at least one of the two electrodes , extends over this gas-guiding element, wherein the plasma generator modules are each delimited by a module housing laterally along the electrodes and transversely to the electrodes , wherein the electrodes are each arranged at a bottom side of the module housing , wherein the module housings of the plurality of plasma modules are provided with fixation devices and fixed to one another or to a common module frame by means of the fixation devices , and wherein the plurality of plasma modules are arranged side by side along the electrodes and transversely to the electrodes , and offset in such a way that they partially overlap along the electrodes . <EOS>