A vacuum is a space that is completely empty of matter, including air. In scientific terms, it refers to an area where the pressure is significantly lower than atmospheric pressure. Vacuums are commonly created in laboratories and are essential for various experiments, such as those involving particle physics or vacuum packaging. In everyday life, vacuums are also associated with vacuum cleaners, which are devices that remove dirt and debris from floors and other surfaces. These machines work by creating a partial vacuum that sucks in air and particles, making cleaning more efficient and effective.