The rapid development of high-tech has brought a lot of changes to our life. First, more and more families choose to use vacuum cleaners. More people prefer the cordless hand-held vacuum cleaner, which is fast in cleaning and convenient to use. Gradually occupied the consumer market of household vacuum cleaners.

Although the advantages of cordless vacuum cleaners are very obvious, how to select them has become a subject in the face of a dazzling array of products on the market.

See the dust collection rate

For the cordless hand-held vacuum cleaner, the dust collection rate is very important, which directly affects the final cleaning effect of the vacuum cleaner and the degree of cleanliness and thoroughness. Therefore, the first step in the daily purchase of cordless hand-held vacuum cleaners is to see their dust collection rate.

The efficient and lasting dust collection rate not only means that it has obvious advantages in absorbing dust, melon seed shells, and other small particle objects but also must be able to quickly absorb paper scraps, hair, and other light objects so that in the process of daily household use, it can achieve a thorough cleaning effect.

Two factors affect the dust collection rate of cordless hand-held vacuum cleaners, one is the power of the vacuum cleaner, and the other is the vacuum degree of the vacuum cleaner. Both of them provide strong support for the dust collection rate to ensure that both large particles of garbage and fine dust can be inhaled into the vacuum cleaner.

• Power

The power of cordless vacuum cleaners refers to the amount of work done by electrical appliances or the amount of energy conversion in unit time. For the household cordless vacuum cleaner, it means the size of the cleaning area and the thorough degree of cleaning within a certain period.

The power of daily household cordless hand-held vacuum cleaners is generally 350W-1500W, and different power sizes are used in different cleaning ranges. For example, 1200W power is enough for solid wood floors or general ceramic tiles; The curtain and carpet use about 350W power, which can save electricity and reduce noise.

Buying skills: In terms of power selection of cordless vacuum cleaners, there are two general principles according to the actual situation of your home:

① Select the large rather than the small. The cleaning efficiency and suction force corresponding to high power are stronger, especially for families with large sizes, and the single cleaning area of a high-power cordless vacuum cleaner is larger.

② You can choose a cordless hand-held vacuum cleaner with intelligent power regulation, so no matter how large the house is or how complex the clean environment is, you can easily deal with it.

• Vacuum degree

The cordless vacuum cleaner relies on the motor to rotate and discharge the air in the vacuum chamber, which generates the air pressure difference in the vacuum chamber. When the external air is inhaled, a certain degree of vacuum is generated. The thinner the air in the vacuum chamber is, the higher the vacuum degree is, and the greater the pressure difference is, the easier it is to carry dust.

Therefore, the vacuum degree reflects the suction of the vacuum cleaner. The standard unit of vacuum degree is Pa or kPa, and its calculation formula is vacuum degree KPA=air pressure in the vacuum cleaner body - atmospheric pressure at room temperature. The vacuum degree of ordinary household vacuum cleaners should be at least 18 KPA.

Shopping tips: check the sealing. A good vacuum degree can not be separated from the help of high-quality sealing. When we buy a vacuum cleaner daily, we can judge its vacuum degree according to the sealing of the main part of the vacuum cleaner. The specific methods are as follows:

Turn on the cordless vacuum cleaner, then cover the suction mouth half with your hand, and use a paper towel to detect whether there is air leakage in the host part. If there is no blowing tissue and there is no change in the suction at the hand cover, it can be purchased; On the contrary, it is not recommended to purchase if the main machine parts blow paper towels or the hand covers have obvious suction changes.

Secondly, when selecting a cordless hand-held vacuum cleaner according to the vacuum degree, the actual vacuum degree of the vacuum cleaner can also be obtained according to the known information given in the vacuum cleaner manual and the vacuum degree algorithm. Then, choose a cordless hand-held vacuum cleaner with a high vacuum.

See the dust collection method

To select a cordless vacuum cleaner, you also need to know the dust collection method it uses. Different dust collection methods will directly affect the final cleaning effect. In cordless hand-held vacuum cleaners, there are two main dust collection methods, one is the non-dust bag cyclone dust separation method, and the other is the dust bag with dust bag.

• Cyclonic dust

The cyclone dust collection technology of the cordless hand-held vacuum cleaner refers to that after the cordless vacuum cleaner absorbs dust through the suction port, it needs to use the centripetal force generated by the oval cyclone device to drive the dust to rotate and deposit to the bottom of the dust collection box at variable speeds, while the separated air is discharged after being filtered by the motor protection filter and HEPA.

Advantages: Cyclone dust separation, more clean and thorough filtration, and can filter small mites, Escherichia coli, Staphylococcus, and other bacteria, with a wider scope of application;

Disadvantages: Cyclone dust separation is a new type of dust collection technology in recent years. The price of cordless hand-held vacuum cleaners using cyclone dust separation technology is on the high side.

• Dust bag collection

The principle of the dust bag collection method of the cordless hand-held vacuum cleaner is that there is a dust bag inside the vacuum cleaner, and when the vacuum cleaner is collecting dust, the garbage and dust collected will be concentrated in the dust bag. When the dust collection bag is full, the garbage can be poured out for further use.

Advantages: the dust bag dust collection mode is simple in structure, and easy to replace and maintain, and the cordless vacuum cleaner with dust bag dust collection mode is affordable.

Disadvantages: The dust collection bag needs to be replaced and cleaned regularly, otherwise it will affect the efficiency of dust collection; Secondly, the dust bag collection has high requirements on the material of the dust bag, so a special dust collector bag must be used, and after a period of use, a new dust bag must be replaced.

From the perspective of dust collection and filtration mode, the dust bag type vacuum cleaner is convenient, and the dust-free bag type is environmentally friendly and cleaner. Therefore, in the daily purchase, it is recommended to give priority to the cordless hand-held vacuum cleaner with dust-free bag collection mode.

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