A cleaning device for cleaning an edge area of a furniture board, comprising - a rotary drive, - a rotary shaft which can be driven by means of the rotary drive, - a brush coupled with the rotary shaft, which can be driven in rotation about an axis of rotation by means of the rotary drive, and - a supply system for supplying a cleaning liquid to the brush, wherein the brush comprises a carrier element and cleaning elements anchored in receptacles of the carrier element and projecting above the carrier element, which are suitable for abrasive engagement with the furniture board, wherein the cleaning elements are arranged on the carrier element in the form of a ring around the axis of rotation and in this way form at least one element ring (20, 21), wherein the supply system comprises a storage for storing the cleaning liquid and a supply line for conveying the cleaning liquid from the storage to the carrier element, characterised in that the supply system comprises a subdivision system formed on the carrier element, wherein the subdivision system comprises a distribution point formed centrally in or on the carrier element assigned to the rotary shaft, and at least one supply channel (14, 15) extending at least in sections radially in relation to the axis of rotation within the carrier element, wherein the carrier element comprises an annular channel (16, 17), which is assigned to the receptacles of the cleaning elements arranged in the form of the element ring (20, 21) the cleaning ring and extends in a ring shape within the carrier element, or wherein the annular channel (16, 17) is connected fluidically by at least one supply channel (14, 15) to a distribution point, so that the cleaning liquid can be conveyed from the distribution point through the supply channel (14, 15) to the annular channel (16, 17) and thus via the receptacles to the cleaning elements of the element ring (20, 21). - a rotary drive, - a rotary shaft which can be driven by means of the rotary drive, - a brush coupled with the rotary shaft, which can be driven in rotation about an axis of rotation by means of the rotary drive, and - a supply system for supplying a cleaning liquid to the brush, wherein the brush comprises a carrier element and cleaning elements anchored in receptacles of the carrier element and projecting above the carrier element, which are suitable for abrasive engagement with the furniture board, wherein the cleaning elements are arranged on the carrier element in the form of a ring around the axis of rotation and in this way form at least one element ring (20, 21), wherein the supply system comprises a storage for storing the cleaning liquid and a supply line for conveying the cleaning liquid from the storage to the carrier element, characterised in that the supply system comprises a subdivision system formed on the carrier element, wherein the subdivision system comprises a distribution point formed centrally in or on the carrier element assigned to the rotary shaft, and at least one supply channel (14, 15) extending at least in sections radially in relation to the axis of rotation within the carrier element, wherein the carrier element comprises an annular channel (16, 17), which is assigned to the receptacles of the cleaning elements arranged in the form of the element ring (20, 21) the cleaning ring and extends in a ring shape within the carrier element, or wherein the annular channel (16, 17) is connected fluidically by at least one supply channel (14, 15) to a distribution point, so that the cleaning liquid can be conveyed from the distribution point through the supply channel (14, 15) to the annular channel (16, 17) and thus via the receptacles to the cleaning elements of the element ring (20, 21).