Channel body for ventilating an interior of a vehicle, comprising: an orifice section comprising a first wall section with a first surface section and a second wall section with a second surface section, wherein the surface sections (12, 14) are arranged, with regard to a Cartesian coordinate system with a X-direction, a Y-direction and a Z-direction, opposite to each other in the X-direction, and wherein the orifice section defines a channel section which extends along the Z-direction and which opens from the channel section with an opening section, a recess formed in the second wall section, which is formed by: two recess longitudinal surfaces (29.1, 29.2) which lie opposite each other in the X-direction, two recess end faces (29.3, 29.4), a bottom surface (29.5) which limits the recess opposite to the Z-direction, a bearing opening which extends in the Z-direction, wherein through the bearing opening the recess opens towards the channel section and wherein the bearing opening is formed in the Y-direction with a width that bearing surfaces (28.1, 28.2) which face each other form the bearing opening, wherein the recess is open in the Z-direction by forming an end wall opening of the second wall section, wherein the end wall opening extends in the X-direction and the Y-direction, at least one spacer, each comprising: a first end section (23.1) which is coupled to the first surface section of the first wall section, a second end section (23.2) which is located in the recess and a central section which is located between the two end sections (23.1, 23.2) located and which extends in a longitudinal direction (L S), wherein the central section bridges a distance between the surface sections (12, 14) corresponding the width of the orifice section and protrudes through the bearing opening to establish a minimum distance between the opposing surface sections (12, 14), wherein the minimum distance is determined by the length of the spacer, wherein the second end section (23.2) is formed as broadening transverse to the Y-direction and extends from the central section in a transverse direction which extends transverse to the central section longitudinal direction (L S), wherein the recess is designed such that it receives the second end section (23.2) positively or receives the second end section (23.2) with a play or forms an interference fit with the second end section (23.2). an orifice section comprising a first wall section with a first surface section and a second wall section with a second surface section, wherein the surface sections (12, 14) are arranged, with regard to a Cartesian coordinate system with a X-direction, a Y-direction and a Z-direction, opposite to each other in the X-direction, and wherein the orifice section defines a channel section which extends along the Z-direction and which opens from the channel section with an opening section, a recess formed in the second wall section, which is formed by: two recess longitudinal surfaces (29.1, 29.2) which lie opposite each other in the X-direction, two recess end faces (29.3, 29.4), a bottom surface (29.5) which limits the recess opposite to the Z-direction, a bearing opening which extends in the Z-direction, wherein through the bearing opening the recess opens towards the channel section and wherein the bearing opening is formed in the Y-direction with a width that bearing surfaces (28.1, 28.2) which face each other form the bearing opening, wherein the recess is open in the Z-direction by forming an end wall opening of the second wall section, wherein the end wall opening extends in the X-direction and the Y-direction, at least one spacer, each comprising: a first end section (23.1) which is coupled to the first surface section of the first wall section, a second end section (23.2) which is located in the recess and a central section which is located between the two end sections (23.1, 23.2) located and which extends in a longitudinal direction (L S), wherein the central section bridges a distance between the surface sections (12, 14) corresponding the width of the orifice section and protrudes through the bearing opening to establish a minimum distance between the opposing surface sections (12, 14), wherein the minimum distance is determined by the length of the spacer, wherein the second end section (23.2) is formed as broadening transverse to the Y-direction and extends from the central section in a transverse direction which extends transverse to the central section longitudinal direction (L S), wherein the recess is designed such that it receives the second end section (23.2) positively or receives the second end section (23.2) with a play or forms an interference fit with the second end section (23.2).