Suction head configured to be applied in a vacuum cleaner and to perform a cleaning action on a surface, the suction head comprising: a housing, and at least one brush that is arranged in the housing to be rotatable about a rotation axis, and that is configured to interact with the surface to be cleaned, wherein the housing is configured to expose a portion of the brush to the surface to be cleaned and to cover another portion of the brush, wherein a surface of the housing facing the brush is provided with an outlet opening that is configured to be in communication with an air suction source configured to invoke a flow of air in a direction away from an area of the housing where the brush is located, through the outlet opening, characterized in that the surface of the housing facing the brush is further provided with a plurality of grooves, wherein the plurality of grooves comprises two sets (36, 37) of grooves, which are located at sides of the outlet opening which are opposite sides in a longitudinal direction ( l) being the direction in which the rotation axis of the brush extends, wherein each of the sets (36, 37) of grooves includes grooves which are oriented with a circumferential component about the rotation axis and with an axial component in the longitudinal direction ( l), wherein, as seen in the same circumferential direction (c) about the rotation axis, a direction of the axial component of the grooves of the one set (36, 37) of grooves is opposite to a direction of the axial component of the grooves of the other set (36, 37), and wherein a distance between the surface of the housing facing the brush and an operational outline of the brush is a distance in a range of 0 mm to 2 mm, in areas of the surface of the housing facing the brush outside of the grooves. a housing, and at least one brush that is arranged in the housing to be rotatable about a rotation axis, and that is configured to interact with the surface to be cleaned, wherein the housing is configured to expose a portion of the brush to the surface to be cleaned and to cover another portion of the brush, wherein a surface of the housing facing the brush is provided with an outlet opening that is configured to be in communication with an air suction source configured to invoke a flow of air in a direction away from an area of the housing where the brush is located, through the outlet opening, characterized in that the surface of the housing facing the brush is further provided with a plurality of grooves, wherein the plurality of grooves comprises two sets (36, 37) of grooves, which are located at sides of the outlet opening which are opposite sides in a longitudinal direction ( l) being the direction in which the rotation axis of the brush extends, wherein each of the sets (36, 37) of grooves includes grooves which are oriented with a circumferential component about the rotation axis and with an axial component in the longitudinal direction ( l), wherein, as seen in the same circumferential direction (c) about the rotation axis, a direction of the axial component of the grooves of the one set (36, 37) of grooves is opposite to a direction of the axial component of the grooves of the other set (36, 37), and wherein a distance between the surface of the housing facing the brush and an operational outline of the brush is a distance in a range of 0 mm to 2 mm, in areas of the surface of the housing facing the brush outside of the grooves.