In spring and autumn, fresh air from the open window is evenly distributed throughout the room. In summer, Vornado fans create a pleasantly cool breeze throughout the room. Cold air from air conditioners is evenly distributed. In winter, a Vornado fan can help save costs: it evenly distributes the heat from the heating system and fireplace, as well as the warm air that accumulates under the ceiling, throughout the entire room. All models are made from shatter-resistant polystyrene. With a 3-speed adjustment, they adapt perfectly to current needs. The Vornado 633 is ideally suited for medium to large rooms. The airflow it generates can reach up to 23 meters. A perfect fan for most environments.