A dry vacuum uses only air to suck in dust and dirt as opposed to a wet vacuum that uses water with air to clean surfaces. It has an air pump that creates a partial vacuum for suctioning. Aside from dust and dirt, it can also pick paper, pins, lint, hair, small pebbles, sand, leaves, and other small objects that can fit in the vacuum's nozzle. It has a filtering system that collects dirt for later disposal.