A device for dry ice treatment and in particular for dry ice cleaning of surfaces , wherein the device comprises the following: - a dry ice source for providing dry ice, particularly in the form of dry ice particles; - a mixing unit fluidly connected or connectable to the dry ice source ; - a compressed air source fluidly connected or connectable to the mixing unit ; and - a conditioning unit fluidly connected or connectable to the mixing unit for adapting a dry ice particle/compressed air mixture provided by the mixing unit to application-specific conditions prior to the dry ice particle/compressed air mixture being applied to the surface to be treated, wherein the conditioning unit is designed to condition the dry ice particle/compressed air mixture such that a predefined or definable portion of dry ice particles in the dry ice particle/compressed air mixture is completely sublimated at a predefined or definable distance in front of the surface to be treated, wherein the distance of a sublimation range from the surface to be treated can to that end be set in an application-specific manner, preferably automatically and more preferentially selectively automatically, by means of the conditioning unit , wherein the sublimation range is an area in which the predefined or definable portion of dry ice particles in the dry ice particle/compressed air mixture is completely sublimated, wherein the conditioning unit comprises at least one filtration device , wherein at least part of the dry ice particle/compressed air mixture to be conditioned is directed through the filtration device , and wherein the filtration device is designed to only allow dry ice particles of a particle size not exceeding a predefined or definable value to pass through, characterized in that a mesh size of the filtration device is adjustable for setting a critical particle size of the dry ice particles in the dry ice particle/compressed air mixture up to which dry ice particles pass through the filtration device . - a dry ice source for providing dry ice, particularly in the form of dry ice particles; - a mixing unit fluidly connected or connectable to the dry ice source ; - a compressed air source fluidly connected or connectable to the mixing unit ; and - a conditioning unit fluidly connected or connectable to the mixing unit for adapting a dry ice particle/compressed air mixture provided by the mixing unit to application-specific conditions prior to the dry ice particle/compressed air mixture being applied to the surface to be treated, wherein the conditioning unit is designed to condition the dry ice particle/compressed air mixture such that a predefined or definable portion of dry ice particles in the dry ice particle/compressed air mixture is completely sublimated at a predefined or definable distance in front of the surface to be treated, wherein the distance of a sublimation range from the surface to be treated can to that end be set in an application-specific manner, preferably automatically and more preferentially selectively automatically, by means of the conditioning unit , wherein the sublimation range is an area in which the predefined or definable portion of dry ice particles in the dry ice particle/compressed air mixture is completely sublimated, wherein the conditioning unit comprises at least one filtration device , wherein at least part of the dry ice particle/compressed air mixture to be conditioned is directed through the filtration device , and wherein the filtration device is designed to only allow dry ice particles of a particle size not exceeding a predefined or definable value to pass through, characterized in that a mesh size of the filtration device is adjustable for setting a critical particle size of the dry ice particles in the dry ice particle/compressed air mixture up to which dry ice particles pass through the filtration device . <EOS>