In most cases, the use of sofa-type cushion, in order to facilitate the evacuation of the people more use cushion can flip structure.
The seat should take into account the seat number and the local lighting in the dark, allowing the user to identify and find a seat. According to the use and the design needs of the site, the hall seat needs to place documents and writing boards for recording, special Halls also require consideration with the simultaneous translation equipment and voting, speech equipment combination; some theatres or halls also require seats and air-conditioning systems to match.