Heating, Ventilation, and Air Conditioning Products Design Torus Fan by Dosun Shin Torus is a portable fan that distributes air in 360 degrees. Two motors drive the airflow, so several people around the fan can be cooled at the same time and without interruption. The circular air distribution removes the need for oscillation, which many standard fans use to reach a wider area. Noise produced during operation is kept low to improve comfort. The outer shell is inspired by the Venus flower basket, a natural structure of glass fibers that form small squares in a cylinder. Torus measures 18 inches in height and 10.5 inches in diameter.