High-Volume, Low-Speed technology, or HVLS for short, transfers a lot of air at a slow rotational speed. Huge volumes of air are moved gently and effectively across large areas by HVLS fans, as opposed to conventional compact, high-speed fans that only move air in a limited area. These fans are designed to maximize airflow while using the least amount of energy possible. Their diameters normally range from 7 to 24 feet. The capacity of HVLS fans to greatly increase air circulation is one of its main benefits. Static air can cause discomfort and inconsistent temperatures in large places.