Hairdressing device for shaping hair, comprising a holder arranged with an air distribution chamber and arranged with a plurality of teeth projecting from the holder, the plurality of teeth comprises combing teeth and hollow teeth, wherein each hollow tooth comprises a channel with at least one outlet opening (52, 52a, 52b) for the air to flow from the air distribution chamber and exit through the at least one outlet opening (52, 52a, 52b), - the hollow teeth and the combing teeth are positioned in an alternating pattern where a hollow tooth is placed next to a combing tooth, and the hollow teeth is configured for the air to flow out from outlet openings at opposite sides of a central longitudinal plane through the holder, - the hollow tooth is arranged with an exterior combing structure which is positioned at both sides of the central longitudinal plane and which has a configuration arranged to surround the channel wherein - each combing tooth comprise a pair of two tooth sections each distanced at an essentially equal lateral distance from the central longitudinal plane - the lateral distance between tips of the combing tooth at each side of the central longitudinal plane is larger than the lateral distance between roots of the combing tooth, - the lateral distance between the tips (70, 71) of the exterior combing structure and the tips of combing teeth is essentially corresponding, and the lateral distance between the roots of the exterior combing structure and the roots of the combing teeth is essentially corresponding all along the central longitudinal plane, characterized in that each lateral distance between tips (70, 71) of the exterior combing structure at each side of the central longitudinal plane is larger than the lateral distance between roots of the exterior combing structure. - the hollow teeth and the combing teeth are positioned in an alternating pattern where a hollow tooth is placed next to a combing tooth, and the hollow teeth is configured for the air to flow out from outlet openings at opposite sides of a central longitudinal plane through the holder, - the hollow tooth is arranged with an exterior combing structure which is positioned at both sides of the central longitudinal plane and which has a configuration arranged to surround the channel wherein - each combing tooth comprise a pair of two tooth sections each distanced at an essentially equal lateral distance from the central longitudinal plane - the lateral distance between tips of the combing tooth at each side of the central longitudinal plane is larger than the lateral distance between roots of the combing tooth, - the lateral distance between the tips (70, 71) of the exterior combing structure and the tips of combing teeth is essentially corresponding, and the lateral distance between the roots of the exterior combing structure and the roots of the combing teeth is essentially corresponding all along the central longitudinal plane, characterized in that each lateral distance between tips (70, 71) of the exterior combing structure at each side of the central longitudinal plane is larger than the lateral distance between roots of the exterior combing structure.