They are equipped with infrared sensors that allow

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Detergents
Washing vacuum cleaners offer two cleaning methods: dry and wet. They are capable of not only sucking up dust and debris, but also cleaning floors and even carpets with clean water or a pre-diluted solution of detergent. Their undeniable advantages are multifunctionality, ease of cleaning, effective stain removal and surface refreshment, but it is worth considering that such equipment will cost you more than most other models.

Robotic vacuum cleaners
Robot vacuum cleaners automate the cleaning process by performing it at any shop around corners and furniture, and also prevent falls from stairs. In general, this is a convenient and practical solution "for every day", because such a device will perform preventive cleaning even in your absence, deftly driving under beds and closets. But there is a fly in the ointment too: robots have a very limited dust collector and water tank. They require frequent filter changes and are not universal, since such equipment cannot be used to clean furniture or densely packed carpets.

Filters
The purpose of filters in a vacuum cleaner is to trap dust particles of different "calibers" inside the storage tank and at the same time to ensure that clean, safe-to-breathe air passes back into the environment. There are five main types of filters that are widely used in modern vacuum cleaners:

disposable paper or reusable cloth bag;
plastic reusable container;
HEPA filter (High Efficiency Particulate Air) – a fine filter capable of trapping up to 99.97% of fine dust and allergens up to 0.3 microns in size;