Il est équipé d'une installation de ventilation mécanique, mais un puits central fait fonction de cheminée naturelle, ce qui pousse spontanément l'air à monter, créant ainsi un courant à l'intérieur du bâtiment.
There is mechanical ventilation installed but the building is designed with a central shaft through it that acts like a natural chimney, so air naturally wants to rise. It creates a current within the building, so you do not need as many fans and mechanical systems to operate it, and that is a federal building.
