Hitachi elevator HF-1 applies “HUMAN FRIENDLY” as the development concept to provide a further smooth ride. This product is the first stage of this development. Its design aims at maximizing a ride without stress by focusing users’ unconscious behavior and feelings. As a result, the interface of the control panel and the buttons are designed to allow users to operate intuitively. Furthermore, the high-ceiling that reduces unpleasant pressure from a limited and closed space and the lighting that changes with human biorhythm are equipped to offer a comfortable riding experience to users.