An air conditioner is provided. The air conditioner includes a main body formed by a plurality of members (200,300,400,500,600,320,340,350,360) assembled with each other and an air passage along which air introduced into the main body flows. At least one of the member includes a Kimchi lactic bacterium zymogenic material (20,30) formed on a portion of the member, which contacts the air flowing along the air passage.
