Air filter and air purifier comprising same

An air filter comprising:

• a first filter frame in which a plurality of first chambers are formed;
• a second filter frame in which a plurality of second chambers are formed and which is disposed on a rear side of the first filter frame;
• and
• a filter material, for filtering air, accommodated in the plurality of first chambers and the plurality of second chambers,
• wherein the first filter frame and the second filter frame are disposed such that when viewed from a front side thereof, centers of the plurality of second chambers are offset from centers of the plurality of first chambers in an up-down direction, respectively,
• wherein the filter material accommodated in the plurality of first chambers and the filter material accommodated in the plurality of second chambers are not overlapped when viewed from a front side of the air filter, and
• wherein when the first filter frame and the second filter frame are rotated 90° about an axis extending in a front and rear direction of the air filter while being erected vertically with respect to a ground, the filter material accommodated in the plurality of first chambers and the filter material accommodated in the plurality of second chambers are not overlapped when viewed from a front side of the air filter.