<；P>；PROBLEM TO BE SOLVED: To provide an air cooling mechanism capable of efficiently performing cooling in facilities which introduce a large amount of open air and ventilate, like a mushroom growing chamber, and intended for energy saving, and to provide cultivation facilities using the air cooling mechanism. <；P>；SOLUTION: This air cooling mechanism includes a body 10 which is formed in a hollow box-like shape, and has a side made of a porous board 20, water-supply means 50, 52, and 53 for supplying water to the porous board 20, and open air sucking means 30 and 40 for introducing open air into the body 10, the air passing through the porous board 20. The porous board 20 is formed in a binary structure in which ceramic layers are laminated into a multilayer and through pores are made in the layer direction, and is set on the side of the body 10, directing the layer direction to the horizontal direction. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
