The function of the dining room kitchen curtain is mainly to prevent flies from flying into the kitchen, but there is a gap between its lower part and the ground. Then the question is coming, why are

The function of the dining room kitchen curtain is mainly to prevent flies from flying into the kitchen, but there is a gap between its lower part and the ground. Then the question is coming, why are you pale? Door curtains are not used to keep flies away. Will there be flies outside? The main functions are as follows: 1 so that the outside customers can't see the operation inside, and they can't see it; 2, it makes the hot food taste less, because the hot food taste goes up; 3, overall beautiful, because the kitchen has an exhaust fan, the bottom is left blank to let the outside air in, and there are other things to stop flies from entering.