A thorough understanding of the principle of vacuum cleaner

                                                                                            There is no best vacuum cleaner in the world, only the right one

                                                                                                                                                                                           -----------Liszt

            The vast array of vacuum cleaners in shopping malls all work on the same principle: an electric motor spins blades at high speeds, creating a vacuum in a confined space that sucks in dust. In theory, any vacuum cleaner has unparalleled cleaning function, but the cleaning ability is really uneven, mainly due to dust collection, filtration, appearance and even brand.

       Knowledge points

• From the point of view of dust collection and filtration, dust bag vacuum cleaner is convenient, dust-free bag type environmental protection; Cyclone type less clogging, water filtration type the best effect.

• From the appearance and shape, the horizontal vacuum cleaner is the most widely applicable, vertical energy loss is less, handheld flexible range, drum-type dry and wet dual use capacity is large

• Choose from a brand, don't worry or have a nanny at home, use Karcher; Do your own housework, clean freak, allergic, use Miele; Tech savvy, not bad for money, have animals, not Virgo, buy Dyson.