What is a Vacuum cleaner?

The Vacuum Cleaner is an apparatus for removing dirt from household articles by means of suction, or a combination of brushing and suction. It was first used in 1901, when it consisted of a pump and a long pipe with a nozzle on the end that was to be applied to the article to be cleaned. The power of these vacuum cleaners was furnished by gasoline or electric motors, which were too large for portable use, and were mounted on trucks or carts which stood outside the house where the apparatus was being used. Later, these units were installed permanently in large buildings, and small, portable machines for home use came to be made in 1909. In many modern types the vacuum cleaner has been combined with the best parts of the old carpet sweeper.

Vacuum cleaner