Things about vacuum cleaners

1.Working principle of Vacuum Cleaners

The working principle of vacuum cleaners is to use the motor to drive the blades to rotate at high speed, generate negative air pressure in the sealed shell, and absorb dust.

What kind of families need to buy vacuum cleaners?

1. Families with large living environments and messy floors. Vacuum cleaners can be equipped with different suction heads to clean different areas such as walls, corners, and wardrobes. There are also mite removal brush heads to quickly clean bed dust mites, which is efficient and convenient.

2. Families with large carpets and floor mats cannot be effectively cleaned by traditional cleaning methods. It is recommended to buy vacuum cleaners because they have strong suction power and multiple suction heads for use in multiple scenes, which is very suitable for deep cleaning.

3. Families with cats and dogs will definitely have cleaning problems such as excessive hair and mess. The floor, sofa, clothes, etc. are areas where hair is easy to fall. It is impossible to clean effectively after cleaning, which makes people collapse. It is impossible to clean efficiently and deeply with a broom alone. Vacuum cleaners can be installed with different types of suction heads for all-round, deep and effective cleaning, sucking away all kinds of hair and dandruff.

4. For families with rhinitis patients or elderly and children, vacuum cleaners can filter out invisible foreign matter such as dust and tiny bacteria, discharge clean air, and avoid health problems such as sensitivity caused by dust.

5.Of course, wealthy families are welcome to use it at will, poor families also have different styles to choose from, and families who borrow money... er er er er er er is still not recommended.

2.The parameters of vacuum cleaners that should be paid attention to

Suction: directly determines the cleaning ability of the vacuum cleaner. The larger the value, the more effective it can be. Vacuum cleaners with large suction brushless motors and electric rolling floor brushes have higher cleaning efficiency.

Battery life: The most important parameter of cordless vacuum cleaners. Imagine that you come home from work and find that you have only cleaned half of your house because the vacuum cleaner suddenly ran out of power and shut down. Isn't it very annoying? Therefore, this parameter is the second consideration when choosing. It is recommended to buy a vacuum cleaner with a battery life of more than 40 minutes.

Filtration system: The filtration system of the vacuum cleaner represents that if the dust is not filtered cleanly, it is easy to cause secondary pollution. It is a major invisible hard indicator of the vacuum cleaner. Only a complete and closed filtration system can completely lock the dust in the dust bucket and discharge clean and tidy air.

Number of nozzles: Naturally, the more the better. Whether the nozzle equipped with the vacuum cleaner is suitable for your multi-scene cleaning needs, can take into account the cleaning environment of the family, and can clean the floor, carpet, mattress, gap, and even the keyboard curtain at the same time is the most humane.

Dust bucket cleaning degree: After long-term use of the vacuum cleaner, it needs to be cleaned regularly. The difficulty of dumping garbage and cleaning the dust bucket determines the user experience.

Noise: The noise problem should also be taken seriously, which will affect the mood of cleaning, cause noise pollution to the environment, and affect the physical and mental health of the family in the long run.

3.Vacuum cleaner brand

NO.1 Dyson \ Dyson UK

Dyson became the leader of the British household vacuum cleaner industry in just 4 years, and captured a large number of audiences with its unique design style. Among them, handheld vacuum cleaners have always been at the forefront of the industry with strong performance and high-end design.

Dyson "digital motor"

The principle of vacuum cleaner:

​The internal motor drives the fan to rotate rapidly, forming a certain vacuum inside, and using the internal and external air pressure difference to inhale the dust-carrying air outside, and then leave the dust in the dust bag or dust cup through the filter, and finally discharge the clean air through the air outlet.

​The suction power of the vacuum cleaner is largely affected by the number of motor revolutions. However, motors with higher revolutions are generally larger in size and have more serious noise problems, which are almost not suitable for general household vacuum cleaners.

​Dyson uses BLDC brushless DC motors, which greatly improves the number of revolutions without changing the volume. It is the first representative to apply BLDC motors to vacuum cleaners. The core "digital motor" technology is the source of the performance of the whole machine and is known as Dyson's "black technology".

​Starting from the V8 series, each generation of Dyson's handheld cordless vacuum cleaners has adopted the latest brushless motor technology. Generally speaking, the newer the series, the stronger the motor performance. The motor speed of the latest model is as high as 120,000 revolutions. At the same time, the battery life of the vacuum cleaner has also been greatly improved, but the charging time and dust box capacity have not changed much. Moreover, starting from the V8 series, the performance gap of each generation of motors has been getting smaller and smaller, and there is a certain problem of overperformance.

Multi-cone cyclone dust collection

Dust and gas separation technology:

​Traditional vacuum cleaners usually only use filters to filter the inhaled dust. The structure is simple. Although the high-density filter can effectively filter fine dust, the disadvantage is that it is easy to clog after long-term use, causing the suction of the whole machine to decay. If a low-density filter is used, the filtration efficiency is low, which is easy to cause secondary pollution.

​Dyson proposed a multi-cone cyclone technology. After the air is inhaled, a cyclone is generated in the dust cylinder. The centrifugal force separates the heavier dust particles into the dust cup. The remaining air enters multiple cones for the next round of dust separation, and finally is discharged through the filter at the air outlet.

​Avoiding the blockage of the internal filter makes it very convenient to dump dust. It is a more effective dust and gas separation method, which can be seen in all Dyson vacuum cleaners.

Battery life and noise

​The battery life of handheld vacuum cleaners has always been criticized by users. Although Dyson's technology is at the forefront of the industry, it does not provide a perfect solution. The battery life of the product will also decrease after long-term use. Users can improve the battery and motor wear by avoiding running the vacuum cleaner at high speed for a long time, thereby extending the battery life of the whole machine. Dyson's latest vacuum cleaner has a battery life of up to one hour, but the running time at high speed is still less than 10 minutes.

​Ordinary vacuum cleaners have high noise when working because the motor needs to run at high speed to generate internal and external pressure differences. Dyson, which is equipped with high-performance digital motors and multi-cyclone technology, has achieved industry-leading noise reduction. Of course, the noise problem is still a common problem in the vacuum cleaner industry so far, and even Dyson cannot completely solve it.

Multiple models and cleaning brush heads

​Dyson's model naming has many suffixes, but the same host is used in the same series, and the only difference is the type of additional brush head.

The direct-drive suction head is a highlight of Dyson. The brush bar of this suction head has a built-in motor, which can drive the hard nylon brush bar and soft carbon fiber bristles when working, and efficiently remove dirt and hair in the dead corners of hygiene. This suction head is equipped in both Fluffy and Motorhead series, which can effectively improve cleaning efficiency.

​The Animal series is more suitable for pet owners, while the Trigger and Mattress series are mainly equipped with corresponding small suction heads for car-mounted and mite removal functions. If you want to achieve the vacuuming function, you need to purchase a floor dust removal brush separately. The Complete and Absolute series have the most complete accessories, and soft velvet roller suction heads are added, which are suitable for wooden or stone floors, with higher cleaning adaptability, and can almost meet various cleaning needs.

Finally, the success of Dyson vacuum cleaners comes from its deep R&D strength and insight into user needs.

NO.2 BOSCH \ Bosch Germany

​Bosch ranks 75th in the latest Fortune Global 500. It mainly deals in auto parts and has made great achievements in the home appliance industry. Specifically in the field of vacuum cleaners, it insists on taking the high-end route and has not created a strong publicity offensive. It is difficult to compete with Dyson in terms of brand awareness, and its market share is far behind. In the evaluation of the Hong Kong Consumer Council in 2018, Bosch vacuum cleaners ranked second and third, and the suction capacity was the same as Dyson V8 Absolute. The product strength is still extraordinary.

​Bosch is equipped with original imported brushless motors in all handheld models. The dual motor design of the main unit and the floor brush makes the suction performance more powerful.

​The German-designed main unit is very light, more friendly to female users, and the hand-holding design is also more scientific, so long-term dust removal will not be too tiring.

​Bosch brushless motor adopts shock absorption technology, and has good noise control ability. It is suitable for pet owners and families with infants and young children, and can effectively avoid being frightened by noise. Not only that, for pet lovers, hair all over the floor always makes people crazy, and the specially designed electric suction head is very efficient in dealing with pet hair.

​Bosch products mainly achieve dust and gas separation through single cyclone and filter material. This technology is no different from the principle of ordinary vacuum cleaning, but in fact Bosch has added two layers of filtration system, and the dust box has a larger capacity and better sealing design. To a certain extent, the dust and gas separation ability is more reliable than most vacuum products, effectively avoiding secondary pollution.

​Bosch adopts an easy-to-remove dust cup design, and the filter element can also be washed with water, which reduces the cost of use. The "intelligent suction sensing technology" equipped can remind users to clean the filter element through LED lights, which helps to restore the suction power of the vacuum cleaner. The battery indicator light is also very considerate for the entire product line.

​The dual battery design is also one of Bosch's product features, which can alleviate the battery life problem of handheld cordless vacuum cleaners from another perspective. Bosch's single battery has a battery life of up to 60 minutes, and the lithium-ion battery has high charging efficiency. With the addition of the fast charging function, it can be fully charged in as little as 1 hour. Alternating the matching batteries can further extend the battery life of the vacuum cleaner. Moreover, the machine can be placed upright when stored, which can save home space while realizing charging connection.

​Bosch's handheld vacuum cleaner product line mainly includes BBS and BCH series. The two have different positioning and are quite different in design. Among them, the BBS series is equipped with a dual motor structure of the main unit and floor brush, and is equipped with a dual battery endurance system. The overall price is around 2000-3500, and the suction heads equipped at higher prices are more complete.

​On the flagship BBS model, Bosch has added some humanized functions, such as setting 3 working mode gears. Gear 1 can be used for daily simple cleaning, and gear 3 is suitable for strong cleaning. It also comes standard with "intelligent sensing function", which makes cleaning more worry-free. The BBS series also comes standard with a flat-designed suction head, which can be adjusted in a targeted manner to clean sanitary dead corners such as the bottom of furniture.

​The BCH series can be said to be a low-profile model of Bosch. Although it is a wireless handheld model, the overall design is more inclined to the traditional wired vacuum cleaner. The performance does not have too many highlights. The single battery life can reach 55 minutes. The dust collection is a common vacuum type, which is more inconvenient than the BBS series when cleaning. The price of the BCH series is below 2,000 yuan, but the user experience is much lower. You can consider it before purchasing.

​Bosch also produces horizontal vacuum cleaners, which are generally barrel-type structures, support both dry and wet use, and are relatively industrial in use. The overall performance is satisfactory, and the advantages compared with Philips and Lake products are not obvious. Among them, the price of GAS15 is around 1,000 yuan, which is not very suitable for home occasions.

​Bosch vacuum cleaners continue the exquisite features of German home appliances. The main performance is reflected in the flagship machine, and some humanized designs are also taken into account. The battery life is also a highlight. Compared with most brands in the industry, it is still very competitive.

NO.3 TENGBA China

Lake is one of the drafting units of the national standard for vacuum cleaners. It started with OEM production and currently has its own brand. It has excellent performance in the offline market and has always been in the top three in the national market. The annual production and sales of vacuum cleaners are 14 million units. It is one of the high-end brands of domestic vacuum cleaners.

TENGBA's handheld vacuum cleaners are mainly 918 series, with a high price. The self-produced DC motor has a suction power of more than 100W. It is generally a handheld and push rod two-in-one feature design. The push rod mode can be used for floor dust removal. The host can be removed when sucking dust from high places. With the help of 3 types of suction heads, various hygienic dead corners in the home can be solved.

The 918 series models are equipped with a removable battery pack, which can be replaced by the user to reduce maintenance costs. It also supports floor-standing charging and has a long battery life. Except for the two low-end products, Magic Clean is equipped with a mite removal suction head, which is more thorough when cleaning sofas, mattresses and curtains. The anti-entanglement technology is also very friendly to pet lovers.

TENGBA mainstream models are equipped with a wet mop function. It adds a water tank component and a composite rag behind the brush head, which can achieve instant cleaning after vacuuming. The snap-on setting also makes loading and unloading more convenient. However, the weight of the whole machine loaded with components becomes larger, which is not convenient to hold for a long time. Because the vacuum cleaner itself does not support wet suction, there will be certain risks in contacting the wet mopping area in subsequent cleaning. It is recommended to use the vacuuming function directly.

​ As a leader in domestic vacuum cleaner brands, TENGBA has made breakthroughs in major performance and technology. Its product strength can almost compete with most brands except Dyson, but due to its short development time, it still has a long way to go in brand marketing and brand building.

NO.4 Miele \米诺 Germany

​ Miele has been rated as the "most trusted brand" by the American "Reader's Digest" many times. Since 2015, it has won the "Annual Home Appliance Brand" award from the British media which? for three consecutive years. In the latest evaluation of Which?, Miele has many horizontal vacuum cleaners that performed well and have an overwhelming advantage on the list. The American "Consumer Report" also favors its horizontal vacuum cleaners and recommends them with a total score of 75 points, ranking first.

​Although handheld vacuum cleaners are gradually becoming the "darling" of the market, there is still a large number of people who love horizontal vacuum cleaners. Families with conditions generally choose to buy two products, using handheld vacuum cleaners for daily dust removal and horizontal vacuum cleaners for regular large-area cleaning. Miele has always been the main pusher of horizontal vacuum cleaners. Its products have good technical performance and are an excellent representative of horizontal models.

​Like Bosch, Miele follows the consistent rigorous style of German home appliances and has excellent overall workmanship. Although most models use ordinary motors,