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.