The smoking rooms in Terminal 2 and Terminal 2 are located near Gate 223 and Gate 227 in the isolation area of the departure hall on the third floor respectively. The smoking room can keep the controllable distance between smokers and non-smokers, and its centralized and strengthened air filtering device is combined with odorless container boxes for storing cigarette ash and cigarette butts to ensure that the surrounding environment is not stimulated by cigarette smoke toxins and interfered by cigarette odor.