Internet Air Purifier, you have enough!

Absrtact: The recent air purifier market continues to warm up, the Internet air net new high density release. High cost and feelings, so many just into the bureau of the Internet company tasted the sweetness. Big Data plus cloud computing have made big companies an advantage in intelligence. Even so

The recent air purifier market continues to warm up, the Internet air net new high density release. High cost and feelings, so many just into the bureau of the Internet company tasted the sweetness. Big Data plus cloud computing have made big companies an advantage in intelligence. Even so, perhaps the future of these Internet air purifiers will give way to the fresh air system and air-conditioning.

Why do internet companies prefer air purifiers?

360 this year, with TCL to launch a price of 1440 yuan intelligent air purifier, Cheetah officially launched a price of 998 yuan "Leopard air Purification Master", the main child health of the air purifier "three dad" to obtain the high Banyan capital of 10 million dollars a round of financing, shell network and fun Play network to launch the small egg air purifier , all the platform on the line are on-line air purifier products, even Han King also out of an air purifier. Millet launched 899 Yuan Air purifier, but also detonated the market.

Internet companies have a preference for air purifiers, an important reason is to fancy the air purifier market size. Before chatting with three fathers founder Daisai, he gave such a set of data: The air purification market can reach 15 billion yuan a year, shipments can reach 7 million or 8 million units. There were also people familiar with the matter who had given 36 krypton a set of data: Jingdong Mall 2013 Air Purifier Annual sales of more than 2 billion yuan. Online data show: 2011 Domestic Air Purifier Sales of about 1.12 million units, in 2012 about 1.26 million units, and to 2013 years, sales have increased to about 2.4 million units, the year-on-year growth of up to 90.5%, the air purifier total market reached about 5.6 billion yuan, Rose 105.9% , although the rapid development, in China, the air purifier penetration rate is only 0.1%, which also means a very imaginative space of a huge market. Look, this market is still very attractive.

Compared with other hardware, air purifiers are marketing-oriented, which is one of the things that internet companies are good at. A good story may be able to preempt the user's mind; a good marketing channel may be able to preempt the user community. Three of the success of the father of the crowd behind is a child to breathe fresh air of love stories and media advertising marketing resources. Leopard Rice Air Purification master hot talk with the help of a young man can afford the feelings of air purifiers and Cheetah brand influence. The small egg uses the shell net the brand marketing ability and the fun play net 120 home channel superiority. Millet told a super cost-effective air purifier story, there are more than 70 million MIUI users, there are 1 million hand ring successful precedent. To tell such a story, to do such a positioning, traditional air purifier manufacturers, apparently no internet company handy.

There are markets, stories are not enough, you have to have goods. Air purifier is actually a comparison of the standardized hardware, and Park said, the entry threshold is relatively low. In the industry also have such jokes, do air purifier shell of the Internet company.

How to make an air purifier?

As mentioned above, the air purifier is a relatively standardized hardware product, the main technology, structure, the original has been relatively mature.

The air purifier commonly uses two kinds of technology: electrostatic absorption technology and HYPE filtration technology. The former is the use of high voltage electrostatic, to capture airborne dust charged particles, dust purification, the latter through the fan-driven hype filter to absorb dust and formaldehyde and other pollutants. The former often promote not to replace the filter cartridge, but in the use of the process will produce a large number of toxic gas ozone, endangering human health. The latter requires frequent replacement of filter elements, the subsequent use of higher costs. At present, there are many products are the use of electrostatic filter network double purification technology. But most of the air purifiers currently used in the market are hype filtration technology. Next we will also focus on this type of air purifier.

The cost and key of HEPA filtration type air purifier mainly lies in four aspects: blower, air duct, filter element, sensor.

(1) Fan

Fan is the main power source, determines the size of the air volume, the price from dozens of to thousands of yuan, but not the more expensive the better, but also according to the selection of different design options to match the fan.

The common fan mainly has three kinds, the centrifugal fan, the axial flow fan, the tubular fan. Through the flow is the wind through the fan, but also from the side of the fan, the most common is the air-conditioning fan. But this kind of blower is not used in air purifier. So, let's focus on the other two.

Axial flow fan, is the air and the direction of the wind vane axis of the same fan, such as fans, air-conditioning outside the fan, the use of such a fan gas will be parallel with the fan shaft, air and pressure are relatively small. For example, the left side of the axial flow fan, under 0 pressure, the maximum air volume is 1250 cubic meters, but under the pressure of 800pa, can not be out of the wind.

Centrifugal fan work, airflow from the fan shaft into the blade space, the air is thrown out, the wind wheel inside the formation of a vacuum, the air sucked in, this principle is a bit like a tornado. The use of centrifugal fan air volume and pressure will be relatively large, such as the above figure of the centrifugal fan, and in 0 under pressure out of 1100 cubic meters, under the 100Pa can also have about 1000 cubic meters, but also to do the noise treatment, so is the most commonly used fans. At present, there are only a few air purifiers in axial-flow fans, such as filter-screen filtration level is very low Blueair503.

In fact, this does not mean that the speed of the fan is greater the better, and some high-speed centrifugal fan, can reach 2500 revolutions/min, but high speed will also bring high noise, but also create static pressure (hydrostatic = wind pressure when the fan is not moving wind), so in the design, selection of fans need to look at the pressure curve, in the fan, Strike a balance between the noises. The fan is an important key factor in determining the CADR value of the purifier, therefore, in the early stage of product planning, we can basically predict the CADR value range of the product, the suitable purifying area, the cost control target and other important information, and then according to the above information comprehensive evaluation fan, to choose the best scheme fan assembly.

Although the selection of the fan needs to be based on the design plan, but the fan is certainly divided measured. The best fans are mainly from Germany, Japan, such as Germany's EBM fan. The domestic quality of the wind turbine has a Shenzhen pan-shi Tatsu and so on.

(2) Air duct

Air purifier The effect of the wind is like a tornado, the dust sucked in, is generally used Archimedes spiral or logarithmic spiral made out. Good wind duct design, you can do suction large, low noise.

One factor affecting the air duct is the length of the air duct, for example, from the side of the side out, the air duct will be very short, the next step out, it is possible to increase the pressure of the screen, the side of the air duct will be longer, but some of the dust on the floor may not be adsorbed filtered out. So the design of the air duct also needs to match the product design and function.

In fact, the air purifier in addition to the inner duct, there is a possible invisible outer air duct, that is, the wind from the gas purifier after the trend. This determines whether the air purifier cycle is a small cycle or a large cycle.

In addition, the design of the air duct has a lot of small details to consider, such as whether the hollow, whether waterproof and so on, hollowing out may cause objects fall into the damaged fan.

The air duct is often used with the fan to test good use, to ensure wind speed and wind pressure, can be effective in the ventilation filter network, and also to consider the operation of noise and light pollution and other details. For example, some machines are in the side of the wind, filtered by the upper outlet output purification air, this duct almost no special design. But if this machine installs the UV lamp sterilization, then in the last layer of UV light is easily exposed at night, this does not only affect the nighttime light and sleep, but also may cause damage to the eye.

Many air purifiers are too concerned about fans, filters, Cadr value, appearance, etc., ignoring the details of this aspect, often the end user experience will be affected.

(3) Filter

Filter is like human lungs, mainly used to filter dust, formaldehyde and other pollutants. The unit of measurement of the filter element is the area, in principle, the thicker the better, the more folds the better.

If you need to reach the filter dust, the effect of formaldehyde, at least 6 layers of material: coarse effect filter (filtering hair and large particles), functional filter (removal of bacteria), coarse filter HEPA (filter PM10 dust), fine filtration HEPA (filter PM2.5 dust), formaldehyde special layer (filtration formaldehyde), Activated carbon layer (adsorption of various odor). Under normal circumstances, if the air from the side through such a six-layer filter, and then from the air purifier outflow, the general will be relatively clean. Using the above 6-layer filter, the whole filter cost will reach more than 100 yuan.

In order to remove formaldehyde, in addition to activated carbon layer, some air purifiers also increased the Photocatalyst network to prevent the adsorption of activated carbon formaldehyde again volatile, but also to maximize the removal of formaldehyde. In general, there is a photocatalyst net layer of the purifier, plus a UV lamp, through a determined wavelength to kill harmful bacteria and spores in the air. Theoretically, if including photocatalyst and UV lamp, can form a level 8 purification sterilization effect.

In addition to the thickness of the filter, the number of layers, area, the quality of the filter material is equally important. For example, the 3M is one of the best-known brands in the HEPA. However, the 3M filter also has a level, the best HEPA filter grade is H14, and the lowest standard is H10. In addition, some manufacturers claim that they use 3M filter, but it may not be 3M authentic. In addition, the HEPA network on the market is mostly chemical fiber, but there are glass fiber products, the latter cost more, but the purification effect, to prevent the attachment of bacteria and other aspects of the effect to better. However, at present, the HEPA of chemical fiber still occupy the mainstream.

HEPA filter has a service life, generally in Beijing for example, the service life of almost 3-6 months. If not replaced in time, will result in the purification effect discount, the purifier Cadr value decay very quickly, even on the boot and so on days wasted electricity. Therefore, in addition to the price of air purifiers, but also need to consider the subsequent replacement of the price and frequency of the filter, in order to make the most rational decision-making.

(4) Sensor

Internet Air Purifier Main intelligent function, certainly not without sensors. General air purifiers are equipped with a dust sensor, the current dust sensors are generally divided into infrared sensors and laser sensors. Infrared sensors often measure a numerical range, not the exact data, and can only be simulated by an algorithm.

Laser sensors Use the principle of laser scattering, through the laser to scan the uniform through the air, according to the laser feedback of the current voltage and other changes to identify the size of the particles in the air, and then through the precise algorithm, taking into account the temperature and humidity factors, the concentration of particles into the number of weight (kg). The measured value is accurate, but the price is also relatively high.

The use of laser sensor measurements, can be based on the number of air detection sensor, for the motor automatic conversion speed, adjust the air volume, rapid purification, change wind, according to the number of air purifier, detect the attenuation of Cadr value, automatically remind users to replace the filter screen.

All the parameters are paper tigers.

Evaluation of a hardware product, the first thought is often the parameters. The most commonly advertised parameter of the air purifier is the CADR value. CADR value is the international authority to evaluate the effectiveness of air purification is the main indicator, is clean air ibuyspy Rate) abbreviation, is the purity of the output rate. Theoretically, the higher the Cadr value, the shorter the time needed to purify the air in the room. So many people mistakenly think that the higher the CADR value the better.

Cadr values are important, but attenuation of cadr values is also important. Just bought the air purifier or filter, the air purification needs of the time is 20 minutes, but spent a period of time, it may take 25 minutes, this is the attenuation of cadr value. This value is actually more meaningful than a simple cadr value.

So, the problem is, the CADR value is generally a business in the detection of the pending test to get a numerical value, then the standard test environment in the value of the natural environment is still valid? After all, the home environment, it is impossible to 100% seals, and a variety of furniture at home affect the flow of air, will inevitably affect the purification effect.

Another most commonly heard parameter is the removal of the formaldehyde rate. Formaldehyde purification only marked removal rate, in fact, this percentage with the purification time has a great relationship, and the Cadr value of formaldehyde and purification time is not very large. You can understand that the CADR value of formaldehyde refers to how long time can be purified to 90% of the value, and the percentage of the callout is only eventually you can remove to%, then the day can achieve the removal rate must be far better than open 10 minutes.

General air purifiers are used activated carbon adsorption formaldehyde, testing is often in the sealed environment to enter a certain concentration of formaldehyde test. The results of this test must be very good. But in the actual natural environment, formaldehyde will slowly continue to release, it is impossible to completely and the environment of the laboratory, manufacturers publicity of the removal rate is also worthy of textual research.

In fact, the use of activated carbon adsorption formaldehyde, the removal rate is second. In many cases, after the air purifier shutdown, formaldehyde will be two times from the surface of activated carbon from the volatile, into the atmosphere, which is very dangerous. Now even the use of photocatalyst layer, can effectively decompose the removal of formaldehyde molecules, but also can not prevent the continued release of formaldehyde in the room.

Real Intelligent Air Purifier

Internet Air Purifier Main intelligent function, often in the emphasis can be based on the actual operating environment, calculate the life of the filter cartridge, automatically remind users to replace the filter.

To fully realize such operations, first of all, there must be two laser sensors, placed in the inlet and outlet, respectively, statistics of the two-position PM2.5 value. The loss of the filter is calculated by calculating the time required to purify the value. For instance, The air purifier in my home was measured into the tuyere PM2 the day before yesterday. is 100, to the outlet PM2.5 is 0, spents 30 minutes, yesterday measured the tuyere PM2.5 100, spents 30 minutes, PM2.5 only to 30; today, when the test, 30 minutes out of the Tuyere PM2.5 to 50, then my filter is constantly wasting. When the day after tomorrow, spents 30 minutes, the air outlet data or 100, you can conclude that my filter die.

You must have seen, there will be problems here, one is the cost of the problem, one is the ability to data processing. In fact, using a sensor, it can be estimated. But the massive data processing, will test the cloud computation ability. Big internet companies have a clear advantage in this area.

All over the current air purifier, the basic use of a single sensor. From the app side, the basic is estimated beforehand that the filter can be used often, such as 6 months, real-time minus the use of the length of time to get the value of the filter life. This is obviously not a real intelligence, but it is actually more convenient than the traditional purifier.

Large companies with cloud computing capabilities are naturally flocking to data, but no one wants to be a conduit for sending data to others. It is said that Baidu once found a well-known traditional air purifier company, said to provide free cloud services to each other, but asked the other party to open cloud data to Baidu, the company's frightening, not only refused to cooperate with Baidu and other Internet companies, but also bought their own servers, placed in the Boss office, used to store data.

The intelligence is obviously not people's attention all, the inexpensive product also never is the people's choice, the high price ratio only has been the people's tireless pursuit. If you really did all the above, how much would such an air purifier cost?

Fan: 200-250 yuan

Cartridge: 150 Yuan

Sensor: 30 RMB/130 yuan

WiFi module: 35 yuan

Shell: 150 yuan

Other Original: 120 Yuan

Labor, packaging, freight, taxes and other costs: another

In this way, a truly intelligent air purifier cost price is about 890 yuan-1000 yuan.

The future of Air purifier

is the air purifier the ultimate form? I guess a lot of people would think not. One of the most common problems is the question of not opening windows. Most domestic air purifier uses the internal circulation method to purify the air, which cannot solve the problem of high carbon dioxide concentration in air. It is not a good idea to open the window and ventilate in the haze.

How can the future solve the problem of air purification better? Some people think that the fresh air system is very advantageous. Fresh air system is a set of new ventilation ventilator and pipeline accessories composed of an independent air-conditioning system, fresh air ventilator will be outside the outdoor gas through filtration, purification, through the pipeline to the indoor, while the indoor dirty, low oxygen content of the air outside. Compared with the air purifier, the main advantages of the fresh air system are: Do not open windows, remove harmful gases and bacteria in the room, super mute.

Fresh air system in foreign countries, especially in Europe and America has been widely used, but in the domestic penetration rate is very low, mainly in office buildings, shopping malls and so on. The main problem is the price, the domestic air system about 130,000 yuan, which also restricts its popularity. Many countries in Europe and the United States will require the installation of fresh air system, the future may become standard domestic housing, but this will take time, left to the air purifier time.

What's the most likely thing about the air purifier? Maybe it will be air-conditioning. If the air conditioner can have HEPA filtration function in the future, it can completely replace the air purifier, which is technically achievable, and Haier has already done it.

Internet Air Purifier, you really enough!