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 entire room. Cold air from air conditioning units is evenly distributed. In winter, a Vornado fan can help save costs: it evenly distributes the warmth from heating and fireplaces, as well as the warm air trapped 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 630 is ideally suited for medium to large rooms. The airflow it generates has a reach of up to 21 meters. A perfect fan for most environments.