For security reasons, the number of visitors to the lunch concerts is limited to 1,500. Therefore, each visitor is given a chip at the entrance to the Philharmonie by a visitor services staff member. This chip is then handed back to enter the foyer where the concerts take place. It is not possible to reserve chips or to remove them from the Philharmonie for re-use. The bringing of folding chairs is not permitted for safety reasons. There are a limited number of seats available for visitors with disabilities.