The operator with boots enters the sanitary passage through the boot sink, a timed photocell starts the boot-washing brushes.
Moving forward, the operator passes through a pool of water with a sterilizing product.
Then proceeds to the hand sanitizing and sole washing station, once these steps have been carried out, he is allowed to continue by opening the existing barrier.
In the opposite direction, it is possible to exit through the passage, the barrier is normally free at the exit and the operator with boots makes the entire route straight and the one with shoes exits through the side of the sterilized pool.