An air filter system for a fuel cell vehicle, the air filter system comprising: - an elongated filter housing comprising an opening at a first axial housing end, and an outlet connectable to a fuel cell at a second axial housing end, wherein the filter housing comprises an axially protruding portion at the second axial housing end, the axially protruding portion protrudes axially towards the first axial housing end, and - a tube shaped air filter element, the air filter element being housed inside the filter housing and axially insertable into the opening at the first axial housing end of the elongated filter housing, wherein the air filter element comprises: - a first axial end and a second axial end, the first axial end being arranged on an opposite axial end of the air filter element compared to the second axial end, wherein the second axial end is arranged to, when the air filter element is inserted into the filter housing, face the opening of the elongated filter housing, - an outer circumferential envelope surface configured to face an axially extending inner surface of the filter housing, the outer circumferential envelope surface extending between the first and second axial ends, - a first inner circumferential envelope surface arranged at the first axial end of the air filter element, and a second inner circumferential envelope surface arranged at the second end of the air filter element, and - a pair of circumferentially extending ridges on the first inner circumferential envelope surface, each of the pair of ridges protrudes towards a geometric centre axis of the air filter element and is configured to engage with an axially protruding portion of the filter housing, wherein the air filter system further comprises a lid connectable to the second axial housing end upon removal of the air filter element from the filter housing, characterized in that the lid comprises a circumferentially extending surface portion, the lid being attachable to the axially protruding portion such that the circumferentially extending surface portion of the lid encloses the axially protruding portion of the filter housing. - an elongated filter housing comprising an opening at a first axial housing end, and an outlet connectable to a fuel cell at a second axial housing end, wherein the filter housing comprises an axially protruding portion at the second axial housing end, the axially protruding portion protrudes axially towards the first axial housing end, and - a tube shaped air filter element, the air filter element being housed inside the filter housing and axially insertable into the opening at the first axial housing end of the elongated filter housing, wherein the air filter element comprises: - a first axial end and a second axial end, the first axial end being arranged on an opposite axial end of the air filter element compared to the second axial end, wherein the second axial end is arranged to, when the air filter element is inserted into the filter housing, face the opening of the elongated filter housing, - an outer circumferential envelope surface configured to face an axially extending inner surface of the filter housing, the outer circumferential envelope surface extending between the first and second axial ends, - a first inner circumferential envelope surface arranged at the first axial end of the air filter element, and a second inner circumferential envelope surface arranged at the second end of the air filter element, and - a pair of circumferentially extending ridges on the first inner circumferential envelope surface, each of the pair of ridges protrudes towards a geometric centre axis of the air filter element and is configured to engage with an axially protruding portion of the filter housing, - a first axial end and a second axial end, the first axial end being arranged on an opposite axial end of the air filter element compared to the second axial end, wherein the second axial end is arranged to, when the air filter element is inserted into the filter housing, face the opening of the elongated filter housing, - an outer circumferential envelope surface configured to face an axially extending inner surface of the filter housing, the outer circumferential envelope surface extending between the first and second axial ends, - a first inner circumferential envelope surface arranged at the first axial end of the air filter element, and a second inner circumferential envelope surface arranged at the second end of the air filter element, and - a pair of circumferentially extending ridges on the first inner circumferential envelope surface, each of the pair of ridges protrudes towards a geometric centre axis of the air filter element and is configured to engage with an axially protruding portion of the filter housing,