The vacuum cleaner is an apparatus that creates a partial vacuum and is used to suck up dust and dirt. It uses an air pump to create a vacuum, and it is used to clean floors, but it can also clean other surfaces. What a vacuum cleaner sucks into itself is collected into a dustbag or a cyclone and later disposed of.
Drum vacuum cleaners are heavy-duty or industrial versions of cylinder vacuum cleaners. Cylinder consists of a large vertical drum, which can be on wheels or even stationary. Power comes from larger electric motors or they are connected to central air compressor and they use Venturi effect to produce suction power.