A water filter vacuum cleaner is a type of vacuum cleaner that uses a water container instead of traditional dust bags or a dry collection bin to capture dirt and dust. During vacuuming, the inhaled air with impurities is directed through a water filter. The water effectively binds dust, allergens, dust mites, and other particles, which remain trapped within it. The purified air is then blown back into the room. Thanks to this principle, the vacuum cleaner maintains a constant suction power, as the water filter does not get clogged like traditional bags. After each cleaning, it is necessary to empty the dirty water and rinse the container to prevent the formation of mold and odors. This type of filtration is often suitable for households with allergy sufferers or asthmatics, as water reliably absorbs even very fine dust particles and prevents their return into the air.