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Vacuum, space in which there is no matter or in which the pressure is so low that any particles in the space do not affect any processes being carried on there. A vacuum can be created by removing air from a space using a vacuum pump or by reducing the pressure using a fast flow of fluid, as in Bernoulli's principle.

Handheld Vacuums Battery life typically varies from a blink and you'll miss it five minutes, all the way up to a more respectable 30 minutes.

Machines vary and manufacturer's instructions will differ from model to model. In general check your filters to ensure that they are not blocked with dirt. Some, not all, filters are washable and should be washed according to manufacturer's instructions. If filters are not maintained, the air that exits your machine will not be as clean and blockag

As the name suggests, a handheld vacuum is typically a smaller, portable version of the traditional vacuum cleaner. Because of its compact size, it comes with its own set of pros and cons. The most obvious con being that it is not a good solution for vacuuming large areas of your home.

The vacuum pump functions by removing the molecules of air and other gases from the vacuum chamber (or from the outlet side of a higher vacuum pump if connected in series). While the pressure in the chamber is reduced, removing additional molecules becomes exponentially harder to remove.

The main point of a handheld vacuum cleaner is convenience, so weight and size are of paramount importance. Handheld vacuum cleaners vary in weight, from 0.7kg to 2.3kg - although most are around 1.5kg.