A vacuum system is a setup designed to remove air and other gases from a sealed environment, creating a vacuum. This is achieved using a vacuum pump, which lowers the pressure inside a container or chamber. Vacuum systems are commonly used in various applications, including manufacturing, laboratories, and food packaging. These systems can vary in complexity, from simple hand-operated pumps to advanced industrial systems. They are essential for processes that require a controlled atmosphere, such as chemical reactions, electron microscopy, and vacuum sealing of products to extend shelf life.