Filter device provided in an air conditioning device

An air conditioning device for a vehicle, said air conditioning device causing air to be supplied by a blower into a room of said vehicle, and having a filter device for removing foreign matter from air flowing through an air passage, said air conditioning device comprising:

• a duct serving as said air passage and leading said air from said blower to said room, said duct being provided with an opening for inserting said filter device therein, and
• a cover for closing said opening,
• said filter device including a filter and at least one connecting member,
• said filter having a plurality of filter elements, each filter element having at least one connecting surface in parallel with a flow direction of said air, and being disposed in said air passage in such a manner that said at least one connecting surface of each said filter element is in parallel with a connecting surface of a next adjacent filter element,
• at least one connecting member connecting said at least one connecting surface of each said filter element to said next adjacent filter element in such a manner that each pair of adjacent filter elements are movable relative to each other,
• at least one connecting member being folded between said connecting surfaces of the adjacent filter elements which are in parallel with each other.