Filter and clamping wedge for a filter

A filter for filtering gaseous fluids, comprising:

• a filter housing comprising a raw-side inlet opening, a clean-side outlet opening, and a service opening:
• a filter element arranged between the inlet opening and the outlet opening, wherein the filter element is removable from the filter housing and insertable into the filter housing through the service opening;
• a clamping wedge arranged in a mounted state between a housing stop of the filter housing and a filter element stop of the filter element and clamping in the mounted state the filter element in a clamping direction against the filter housing, wherein the clamping wedge is configured to be inserted into the filter housing in a joining direction and is configured to be removed from the filter housing opposite to the joining direction;
• wherein the filter element comprises a seal surface at a side facing away from the clamping wedge, wherein the filter element rests with the seal surface against the filter housing;
• wherein the clamping wedge comprises a housing wedge side facing the housing stop and a filter element wedge side facing the filter element stop;
• wherein the housing wedge side comprises a first bearing surface and a second bearing surface separated from each other by a first step;
• wherein the filter element wedge side comprises a first bearing surface and a second bearing surface separated from each other by a second step;
• wherein the housing wedge side rests against the housing stop in a contact plane and wherein the joining direction extends in or parallel to the contact plane;
• wherein the first bearing surface and/or the second bearing surface of the filter element wedge side is positioned at a wedge base angle relative to the joining direction, wherein the wedge base angle amounts to 1° to 20°;
• wherein the first step of the housing wedge side is offset relative to the second step of the filter element wedge side in the joining direction.