Vornado room fans create a concentrated airflow that ensures even air circulation throughout the entire room. In spring and autumn, fresh air from an open window is evenly distributed in 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 heat from heating systems and fireplaces, as well as warm air that accumulates under the ceiling, throughout the room. All models are made from shatter-resistant polystyrene. With a 3-speed adjustment, they adapt perfectly to current needs. The Vornado 573 is ideally suited for medium to large rooms. The airflow it generates has a range of up to 21 meters. A perfect fan for most environments.