HEAT EXCHANGER

A heat exchanger of the present disclosure includes: a plurality of fins each having an opening formed in an upper portion thereof and an opening formed in a lower portion thereof to allow a refrigerant to flow and being provided therein with a flow path through which the refrigerant flows, the plurality of fins being arranged at intervals in one direction; and a header formed at each of the upper portions and lower portions of the plurality of fins, the header being in communication with the flow path, wherein at least one fin, among the plurality of fins, is configured such that at least one of the opening in the upper portion and the opening in the lower portion is closed. Accordingly, the present disclosure provides a fin-tube integrated heat exchanger that is easy to assemble, has high heat exchange efficiency, and low air flow resistance, which also enables a fin-tube-header integrated heat exchanger to be achieved.