An air freshener is disclosed. The air freshener includes a body case defining the air freshener, the body case having a filter installation opening formed in one side thereof, a filter housing disposed in the body case, a drawer including a frame forming therein a drawer opening, through which air passes, and a filter cover coupled to the frame for covering the filter installation opening, and a filter module separably located on the frame for filtering the air that has passed through the drawer opening. The drawer is configured to be withdrawn from the inner space of the filter housing through the filter installation opening.