Is fresh air easy to breathe in? What is his specific role? Is there a difference between the wind wells that peace often says?

Fresh air well: in high-rise public buildings, if each floor can't breathe fresh air, it is necessary to set up fresh air wells. The area of fresh air well is related to the service area, accounting for about six ten thousandths of the office hotel building and one tenth of the commercial building. If the fresh air well serves multiple areas, its area should be accumulated.

Simply put, it is to introduce fresh air and deal with the fresh air unit. When there is no condition to directly introduce fresh air from the external wall, a fresh air well is set in the building. In high-rise buildings, fresh air wells are usually set up, and rain shutters can be set on the top floor to introduce fresh air into the fresh air wells.