Vacuum cleaner and vacuum

The vacuum principle is an essential functional principle of the vacuum cleaner. How exactly this works, and what the generated negative pressure exactly depends, you will learn in detail in this post.

Vacuum generation

The operating principle of the vacuum cleaner is based on the creation of a negative pressure at the end of the suction pipe.

The blower installed in the vacuum cleaner sucks the air through the vacuum cleaner pipe (and through the possibly attached at the end of the vacuum cleaner nozzle). The resulting negative pressure sucks the surrounding air into the vacuum cleaner and also absorbs all the dirt that is at the end.

The dirt is filtered out inside the vacuum cleaner, the air is blown out back (without the dirt contained). The amount of dirt that is blown out decides how safe the vacuum cleaner is.

Factors that determine the negative pressure

Basically, one can physically assume that the resulting negative pressure is greater, the stronger the blower works. The more powerful the vacuum cleaner motor, the more negative pressure is generated.

In addition, however, the area plays a role on which the negative pressure acts. The larger this area, the stronger the negative pressure. This can also be easily tested in practice: A tube with a small diameter absorbs less strongly on a base than a nozzle with a larger opening. The same principle comes into play here.

In general, it can be assumed that the vacuum that a vacuum cleaner hose creates at the opening is so great that it can lift a weight of around 1.5 kg. This has been confirmed in some experiments, but may always be slightly different depending on the device performance.

Tips & Tricks

As an allergic person, make sure that you have good and adequate filter systems (HEPA filters) so that there are as few dust particles as possible in the exiting air that could trigger an allergic reaction or an allergy boost.

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