Air filter featuring - a filter housing having a raw air intake and - a filter element disposed in the filter housing and featuring a filter medium body which surrounds a longitudinal axis of the filter element in a ring-shaped manner, wherein the filter medium body separates a raw side in the filter housing from a clean side inside the filter element , wherein the filter element features a first end disc having a central primary air passage and at least one secondary air passage , wherein a primary air outlet , which communicates via the primary air passage with the clean side of the filter element , is provided at the filter housing , and wherein a secondary air outlet , which communicates via the secondary air passage with the clean side of the filter element , is provided at the filter housing , wherein the at least one secondary air passage is present radially outside the primary air passage and is designed as an opening of the first end disc closed at least radially inwardly, and wherein the secondary air outlet communicates via a port of the filter element with the at least one secondary air passage , said secondary air outlet surrounding the primary air passage coaxially in a ring-shaped manner. - a filter housing having a raw air intake and - a filter element disposed in the filter housing and featuring a filter medium body which surrounds a longitudinal axis of the filter element in a ring-shaped manner, wherein the filter medium body separates a raw side in the filter housing from a clean side inside the filter element , wherein the filter element features a first end disc having a central primary air passage and at least one secondary air passage , wherein a primary air outlet , which communicates via the primary air passage with the clean side of the filter element , is provided at the filter housing , and wherein a secondary air outlet , which communicates via the secondary air passage with the clean side of the filter element , is provided at the filter housing , wherein the at least one secondary air passage is present radially outside the primary air passage and is designed as an opening of the first end disc closed at least radially inwardly, and wherein the secondary air outlet communicates via a port of the filter element with the at least one secondary air passage , said secondary air outlet surrounding the primary air passage coaxially in a ring-shaped manner. wherein the filter element features a first end disc having a central primary air passage and at least one secondary air passage , wherein a primary air outlet , which communicates via the primary air passage with the clean side of the filter element , is provided at the filter housing , and wherein a secondary air outlet , which communicates via the secondary air passage with the clean side of the filter element , is provided at the filter housing , wherein the at least one secondary air passage is present radially outside the primary air passage and is designed as an opening of the first end disc closed at least radially inwardly, and wherein the secondary air outlet communicates via a port of the filter element with the at least one secondary air passage , said secondary air outlet surrounding the primary air passage coaxially in a ring-shaped manner. <EOS>