The present invention relates to an air conditioning adapter for connecting an air conditioning unit provided indoors and an intake/exhaust integrated hood cap installed on an exterior wall of a building, and more particularly, to an air conditioning unit provided indoors and installed on an exterior wall of a building The intake/exhaust integrated hood cap is connected with a duct, and the indoor air exhausted from the air conditioning unit is supplied to the hood cap and discharged to the outside, and at the same time, the outdoor air introduced through the hood cap is supplied to the air conditioning unit. .
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