Tag Archives: home air purifier

What is the effect of the air purifier in addition to aldehyde?

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What is the effect of the air purifier in addition to aldehyde?

The air purifier was not originally aimed at formaldehyde, and the main purification target was PM2.5. Only now, the influence of formaldehyde is getting bigger and bigger, so now, as long as all the electrical appliances want to be with formaldehyde, what is the addition of formaldehyde air conditioner, formaldehyde dehumidifier…
Then let’s see if this formaldehyde removal air purifier is effective.
You can find out the description of the air purifier:
Principle of air purifier
The air purifier utilizes the principle of filtration and adsorption to remove the odor in the air and achieve the purpose of purifying the air. Its function is spectral. The main purifying objects include PM2.5, dust, animal hair, pollen, second-hand smoke, bacteria, etc. When formaldehyde does not have such a strong influence, there is no such model as formaldehyde removal. Even if there is a model other than formaldehyde, it is also activated by activated carbon to achieve the purpose of removing formaldehyde.
The results of the experimental report on the air purifier of the Shanghai Consumer Protection Committee have already concluded that the air purifiers involved in the test have an average rough calculation capacity of 30 square meters, and the purification efficiency per hour is between 8% and 97%. Larger, most of them are below 50%, which is completely incomparable with most of the PM2.5 purification levels above 90%.
Advantages of air purifiers
The reason why the air purifier is so popular is mainly that it is easy to use: plug-in and ready-to-use, long-term effective; early in the filter because of good filterability and adsorption performance, air purification is very obvious; can simultaneously eliminate various odors in the room.
But for formaldehyde, if the filter is installed inside, it is invalid. It can only be activated carbon, it will have an adsorption effect on formaldehyde, but it is the only adsorption. I want to know why everyone is apologetic in the activated carbon package, but I can’t put it down on the air purifier? Just because they are big?
The air purifier does change a disadvantage of activated carbon: it can only passively adsorb formaldehyde around the activated carbon, and there is no way for formaldehyde at a distance. However, other shortcomings are also unchanged: the adsorption capacity is weak, and it is easy to achieve adsorption saturation; after reaching the adsorption saturation, there is no effect on formaldehyde, and if the indoor temperature rises, it will cause formaldehyde desorption and cause secondary pollution. This hazard is even greater.
If it is only for formaldehyde, then I am not buying an electric fan directly to the activated carbon blowing is equivalent to empty? For the air purifier except for formaldehyde, it is necessary to change the activated carbon filter. The quality and volume of this activated carbon determine the effect of removing formaldehyde!
If you are really keen on air purifiers, then I will give you a few suggestions here:
1. If you want to choose a big name, at least the quality of the machine is guaranteed.
2. It is necessary to replace the filter element in time. After the adsorption is saturated, it is useless to formaldehyde.
3, 24 hours to open to continue purification, or open the window after opening the window and add best home air purifier for cigarette smoke for half an hour
4. Because of its limited purification area and economic capacity, buy a few more.
in conclusion
The main purifying object of the best home air purifier for smoke is PM2.5. Of course, there is also a certain effect of adsorbing formaldehyde, but the effect is extremely limited.
In March of this year, CCTV introduced the hazards of formaldehyde and the method of removing formaldehyde in a program of CCTV.
In the CCTV report, Zhang Yuping, director of the Building Environmental Testing Center of Tsinghua University, said: The effect of activated carbon on formaldehyde is very weak. We should use the chemical decomposition of oxidizing substances at this time, which is more effective. Purple plus black can oxidize and decompose the reducing gas formaldehyde into carbon dioxide and water, completely eliminating formaldehyde, not just adsorption. Purple plus black is made of alumina as a carrier, through special preparation techniques and complicated processes. The main features are high strength and fast effect. It is widely used in the purification treatment of toxic gas such as formaldehyde.
Director Zhang Yiping also said that the benzene series exceeded the standard and could be removed by physical adsorption. The black mineral crystal is composed of sepiolite and attapulgite (about 60%) and is made of diatom mud (about 30%) and a small amount of activated carbon (about 10%). The void density is very high and regular (more than normally activated carbon voids). The product has a large number of lattice pores less than 1 nm, and the pore surface has polarity, so it has strong active adsorption capacity for nano-scale polar gas compounds.
How to solve formaldehyde pollution in the end
Not renovated
If you have not yet renovated, it is best to directly engage in a two-way delivery system.
Try to install the fresh air system before the renovation. The system is basically around 20,000 yuan. The principle of fresh air is to discharge the indoor air and discharge the fresh air outside. This kind of formaldehyde removal effect is the best. If you have money, you can install one directly. It is best to choose a big brand. The fan has a long service life. The fresh air system can choose the central fresh air system, and do not choose the wall-mounted type. The wall-mounted type is subject to thickness and aesthetics, and the purification efficiency is too poor. Pay attention to the following points when selecting a fresh air system:
1, choose to have in and out
2, filter network try to choose the filter, do not recommend static electricity (easy to cause ozone exceeded)
3. Choose a fresh air system that is hot exchange
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Can the popular science purifiers blow good air?

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Can the popular science purifiers blow good air?

Purification effect:
Most car air purifiers are limited by power and other factors. The function of “eliminating” PM2.5 is limited, and the effect is not as good as the internal circulation system of car air conditioners.
In the survey, most people in the industry believe that most of the car air purifiers on the market currently have the function of “eliminating” PM2.5, and most of the purifiers use the filter to absorb harmful substances in the air, which is easy to accumulate. Cause secondary pollution.
Car air purifiers have become a new selling point for many businesses.
In many shopping websites, car air purifiers and anti-smashing masks have become hot items in winter. In a website, the reporter searched for car air purifiers, and there were more than 10,000 pieces of product information, including formaldehyde, odor, and PM2.5, which became the key selling points of some merchants’ recommended products.
According to the brand and function, the price of car air purifiers ranges from tens of yuan to several thousand yuan. Among them, a recently-selling car air purifier claims to use high-tech nano-purification in its advertisements. Its high-efficiency air filtration system can not only effectively remove PM2.5, but even filter 99.9% of particles as small as 0.3 microns. Other products claim to purify the interior air by electrostatic precipitator sterilization, activated carbon filters, or low-temperature non-plasma.
There is also a store introduction, the car air purifier sold by the active release of a large number of positive and negative ions, capture and eliminate the bacteria in the air, so as to achieve the purpose of cleaning the air inside the car. It is said that negative ions have the effects of oxygenation and freshening, sterilization and disinfection, sedimentation of dust, neutralization of radiation, and refreshment.
Is the car air purifier so amazing?
Not long ago, someone in Beijing especially did a simple test to verify the purification effect of a car air purifier with a price of 796 yuan.
The purifier is marked with an area of ​​10 square meters and the PM2.5 concentration measured in the car before opening the purifier is 458 μg/m3. When the purifier was turned on, it was found that the speed of air quality change was not ideal. After 25 minutes, the PM2.5 value reached 14 μg/m3, and the PM2.5 tester showed that the air quality was “excellent”.
Afterward, the tester opened the window, restored the air quality inside the car to the initial condition, closed the window and opened the vehicle’s internal circulation system. At this point, the value on the PM2.5 tester dropped rapidly, and the concentration dropped to 14 μg/m3 in just 5 minutes.
A hospital respiratory expert interviewed by the reporter said that most of the car air purifiers on the market are far less powerful than the internal circulation system of the vehicle, and it is difficult to achieve indoor air purification in a short time. If the adsorption device of the car air purifier is saturated, the cleaning effect will be greatly reduced, and secondary pollution is likely to occur, which will cause harm to human health. Therefore, a car purifier is not a “tool”.
The store specializing in the sale of car accessories told reporters that the key to the effectiveness of air purification equipment lies in the filter screen, and the car just provides us with such a filter screen – the car air conditioning filter is a standard HEPA filter, which means only need to turn on the air conditioner. Ventilation can effectively purify PM2.5.
However, he also warned that there are still some vehicles that do not have such an efficient filtration system installed.
It is understood that although the purifier negative ion purification technology promoted by merchants can make dust particles settle and kill bacteria, experts say that its comprehensive purification effect is poor, because it can not remove organic substances such as formaldehyde, and settled particles and bacterial residues remain. In the car, it is easy to produce a “black wall effect.”
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Control the PM2.5 in the car, is the smart car air purifier reliable?

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Control the PM2.5 in the car, is the smart car air purifier reliable?

Olansi’s purification principle is to release the negative ions and the positively charged pollutant particles in the air so that the dust particles such as PM2.5 in the air sink and collide by the positive and negative ions.
In addition, the negative ions can also reverse the polarity of the bacterial protein, so that the viability of the bacteria is reduced or killed, and the effect of purifying the air and eliminating odor is achieved. At the same time, it also emits the same positive and negative ions in the natural environment through a plasma discharge, inhibiting viruses and molds. Taken together, its nominal PM2.5 removal rate is 99%, and the sterilization rate is 98%.
Olansi car air purifies by releasing negative ions and plasma, so it does not need to replace the filter, eliminating the need for post-use maintenance.
Gesture control – easy to operate
How does Olansi with only one power interface implement functional control? Gesture control. When connected to the power supply, just swipe your hand on the top of Olansi, it will start up and work in weak wind mode, then swipe, switch to strong wind mode, repeat this action, shut down.
With such a design, when the vehicle is in an in-vehicle application, the user can blindly operate and judge by the fan sound to ensure driving safety.
In the audio-visual room with 37dB of ambient noise, the noise in the Olansi weak wind mode is 47dB, and the noise in the strong wind mode is 58dB. There is no noise problem. In the daily office environment, it is recommended to turn on the weak wind mode.
Have a car, rest assured
Olansi offers an absorbing car base that fits snugly into the water cup next to the driver’s handrail. However, if you install a driving recorder and take power through the cigarette lighter interface, it can only choose one with Olansi.
Test the purification effect of Olansi in the car. On the same day, Chongqing’s PM2.5 was 75. When it was just on the train, the PM2.5 of the air inside the car was 38, which was not big. A cigarette was placed inside the car, and after a while, the PM2.5 in the car rose to 115. At this time, the Smart strong wind mode is turned on, and when the window is closed for about 20 minutes, the air in the vehicle is restored to about 45, and the effect is obvious.
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Is the car air purifier useful? How is the effect?

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Is the car air purifier useful? How is the effect?

At present, the car has become the hardest hit area of ​​air pollution. All kinds of dust, bacteria, and the smell of car decorations threaten our health. In recent years, car air purifiers have gradually entered our field of vision. Is the device useful? How is the effect?
For the air inside the car, the most unacceptable is the smell. This smell is not only unpleasant but it also affects our health. Many friends usually use the method of spraying perfume. In fact, perfume can only cover the unpleasant taste, and there is no mechanism for sterilization. Although opening the window can improve the air quality inside the car, but the air outside the car is often worse.
Many merchants have declared that the car air purification rate can reach 99% or more during the promotion. In fact, this is only to attract consumers. Although there are various experiments to prove this data, the only thing that can be proved is that Car air purifiers are indeed effective in improving the air quality inside the car. It’s just not as exaggerated as propaganda.
Car purifiers and ordinary household purifiers are a principle, and can also be divided into filter adsorption and negative ion purification functions, but the power is smaller, but the space inside the car is more than enough. Many times, due to the small space inside the car, the purification of the air will be faster.
The EHPA filter in the car purifier can effectively filter particles smaller than 0.3 microns, which has an obvious effect on some dust in the car and PM2.5 filtration. At the same time, it also has a layer of the activated carbon filter. In the car, formaldehyde and benzene and other harmful gases, the function of negative ions is to actively ionize and decompose harmful substances in the air, and the increase of negative ion content itself can improve the air quality, because negative ions are essential “vitamins” in the air.
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What is the role of the car air purifier?

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What is the role of the car air purifier?

The harm of air pollution to the body and mind, needless to say, that everyone is also well aware. What’s more, in the relatively small, enclosed interior of the car, if the air quality is not good, the harm to the occupants, especially the elderly, children and pregnant women, will be even greater. Therefore, in the case that many automobile products do not formally screen and kill PM2.5, chemical pollutants and odor inside the vehicle, many car owners start to purchase and use the top 10 car air purifier by themselves. I hope to create a healthy and clean interior environment
The main principle of the top 10 car air purifier using negative ion technology is to use the electrostatic discharge to release negative ions and to absorb dust in the concentrated air, thereby reducing dust. At the same time, negative ions also ionize into oxygen in the air, which has a certain killing effect on bacteria. The advantage of this kind of product is that the production cost of the product is low. The disadvantage is that the effect of removing particulate matter is not obvious, and it does not work for chemical pollutants such as formaldehyde, benzene, toluene and volatile organic compounds commonly found in vehicles.
The working principle of the low-temperature plasma air purifier is that the gas is broken down by applying a voltage to the discharge voltage of the gas, and various low-oxidation low-temperature plasmas are generated, which can suspend the suspended particles and decompose the organic gas and smile. microorganism. It should be noted that such a purifier also has no effect on chemical pollutants, and the chemical reaction generated when the purifier works will cause secondary pollution, and if there are no corresponding treatment means, it will become a pollution source of the air inside the vehicle.
Photocatalyst technology is a free radical that emits strong oxidizing power under the irradiation of light and has a good effect on microorganisms and organic gases. The disadvantage is that the free radicals stay in the air for a short period of time, and the killing effect on viruses and bacteria is limited.
Therefore, Fu Shiwei’s air purifier uses 4 heavy filtration + ultimate decomposition to make air purification more thorough. The pre-treatment pre-filter quickly blocks large particles such as hair, dander, and dust. The imported HERA high-efficiency filter removes up to 98% of 0.3-2.5 micron particles, effectively blocking harmful substances such as PM2.5, allergens, and bacteria. The high-performance and powerful activated carbon net quickly adsorbs and decomposes toxic and harmful pollutants such as formaldehyde, ammonia and hydrogen sulfide in the air. Remove odors.
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How to choose a home air purifier

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How to choose a home air purifier

“PM2.5, smog” are no strangers to our words. It is a serious threat to our health. Nowadays, air pollution is getting more and more serious. Whether you are outdoors or at home, we can’t avoid PM2. 5. According to statistics, 90% of a person’s life is spent indoors, so indoor air quality is very important for people’s health. We also thought about how to deal with this enemy. In fact, the easiest and most effective way is to buy a top-rated air purifier for home. However, most people don’t know much about household air purifiers. There are also a lot of air purifiers on the market. At the end, which brand has a good effect, let Xiaobian give you a brief introduction.
(1) Working principle of household air purifier
There are many pollutants in the air. The particles that float in the air like dust are called suspended particles. The particle size of the PM is different. Particles smaller than or equal to 2.5 microns are called PM2.5. The human respiratory filtration system, whether it is the hair of the nose or the lungs, can only block suspended particles above 5 microns, which is unstoppable below this volume. So how does the air purifier digest the impurities in the air for us? The air purifier is capable of adsorbing and decomposing pollutants in the air. The air purifier not only filters the dust in the gas but also purifies the toxic substances in the air and eliminates the floating bacteria in the air. So its effect is unquestionable. However, the current air purifiers on the market are divided into nets and no filters. Xiaobian suggested that it is recommended to buy no filter, because there will be secondary pollution caused by the filter, and the filter should be replaced regularly, invisible. Increased costs.
(2) Which brand of air purifier is more suitable for you
At present, there are many brands of air purifiers on the market, and the quality is also uneven. Which brand of air purifier is good? People often say that the top ten brands of air purifiers include: Philips, Sanyo, Midea, Gree, Panasonic, Sharp, Emmett, Yuanda, Honeywell, Yadu, etc. There is also a new top-rated HEPA air purifier product on the market. : Negative ion air purifier. At present, there are some merchants in China that manufacture air purifiers. Taiwan is also good. It has obtained 23 world patents. Compared with the family, this air purifier has no secondary pollution and no pollution. Secondary consumption. No motor is ultra-quiet, it is quite suitable for the elderly and children in the family. However, the price may be a little higher.
Therefore, we should choose from the price, function, brand and after-sales service when purchasing the air purifier. If you don’t know enough about the air purifier, then you may wish to purchase the above-recommended air purifier brand, some domestic air purification. The brand price is still relatively high. The price difference of air purifiers is relatively large, ranging from a few hundred to several thousand. When purchasing, it is necessary to compare in many aspects.
(three) air purifier purchase skills
After introducing so much, I believe many people are ready to buy air purifiers. Is there any skill in this purchase process? Of course, there are:
the first. According to the principle of the air purifier. The principle of air purifier mainly includes electrostatic purification mode, physical purification mode, chemical purification mode, negative ion purification mode, and composite purification mode. In general, negative ion air purifiers will work better.
Second, purchase according to the room area. When choosing an air purifier, only scientific purification can better protect the health of the family. Generally speaking, a room of 20 square meters is suitable for air purifiers above 270ml/h, and a room of 40-50 square meters should be selected for 540ml. /hair purifier.
Third, after-sales service is perfect Try to choose a big brand, one is quality guaranteed, and the other is maintenance.
I believe that everyone knows about air purifiers now. What is the most important thing in the 21st century? “Health” is not healthy, you can’t do anything, so it’s especially important to buy a suitable air purifier for your family.

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The necessity of a household air purifier

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The necessity of a household air purifier

The indoor and outdoor PM2.5 concentrations are not much different. Even if the window is closed, the indoors are only 100 times slower than the outdoor. According to the current explosion weather, the outdoor air is also about 450. Toxic” level.
Moreover, in the room where the window is closed, the human body acts as the main purification device.
This is also the main reason why the indoor PM2.5 index can slowly decrease after closing the window.
Because they are all sucked into the body by you indoors!
The reliable air purifier can greatly reduce the indoor PM2.5 concentration and maintain it in a short time so that the indoor air is in a safe range for a long time.

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Household air purifier maintenance method

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Household air purifier maintenance method

For any piece of equipment, after a period of use, in order to ensure the normal operation of the equipment, it needs to be maintained and cleaned, in order to ensure its normal use and service life. Today we will introduce the maintenance methods of household air purifiers.
The household air purifier mainly allows the outside air to enter the interior, and then through the relevant filtering device, all the pollutants in the air are completely filtered out, and finally, the clean and clean air is released. The main maintenance method is mainly in the machine. After working for a period of time, take out the filter in the machine to clean and maintain it. The main methods are as follows:
1. HEPA: You can use a vacuum cleaner to absorb dust from the surface.
2, catalytic activated carbon: half a year to get sun exposure for more than 24 hours, you can restore the activity of activated carbon itself.
3. Ensure that the machine is placed in a stable position while the machine is running. Do not use the purifier near water or volatile flammable materials.
The filter in the air purifier is a very critical component. Its quality is directly related to the working efficiency and working life of the equipment. If it is cleaned regularly, it can ensure the smooth operation of the equipment and improve the purification efficiency of the equipment. Therefore, we must always keep the air purifier clean.
At present, household air purifiers have entered thousands of households. While bringing us fresh air, we must also regularly clean and maintain the air purifiers. Only in this way can we ensure the normal operation and extension of the equipment. Its service life.
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Introduction to the principle of a common household air purifier

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Introduction to the principle of a common household air purifier

With the concern of more and more people about indoor air pollution, household air purifiers have begun to be recognized by more and more families, so the air purifier really works? The following small series talk about air purifiers The principle.
A typical air purifier consists of a high voltage circuit, a negative ion generator, a micro fan, an air filter, and the like. Mainly adopts infrared remote control, gap operation, and other control methods. The filter forms are a mechanical, electrostatic and mechanical electrostatic hybrid.
There are two forms of high voltage generating circuits: one is 220V mains direct boost, double voltage rectification. The other is that the mains is stepped down and rectified by the transformer to form a low-voltage direct current, and then self-excited, boosted, rectified, and filtered to form a DC high voltage. Both forms of circuit generate high voltages between kilovolts and tens of thousands of volts. The charged dust is sucked onto the positively charged electrode plate repair network by discharging the needle electrode. The air filter adsorbs odor with activated carbon or fluorenone, and filters out harmful substances in the air. The negative ion discharge electrode is a set of needle-shaped metal bodies. After the power is turned on, the DC high voltage generated by the high voltage circuit continuously ionizes the air, generating a large amount of positive and negative ions. Since the needle-shaped emitter has negative high pressure, it absorbs positive ions, and a large number of negative ions are repelled by the negative high pressure and are blown out by the micro fan to form a negative ion wind, thereby purifying the air.
Olansi is a professional enterprise specializing in indoor air treatment. The company recommends that the owners do not blindly choose the top 10 home air purifiers after the renovation of the new house. You should find a professional testing company to test the indoors. If the test results show indoors after the test is completed, If the formaldehyde exceeds the standard, then the staff of Olansi will be asked to carry out indoor pollution control. Olansi has a professional management team. After the treatment, the indoor air can reach the standard of human health breathing, and at the same time, it can achieve one-time treatment without adding pollution sources. , for the benefit of life.
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How does a home air purifier work?

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How does a home air purifier work?

When the air purifier is working, the micro-fan (also called the ventilator) in the machine enters the air to be filtered from the air inlet and flows through the filter screen. The formaldehyde in the air is filtered by the high-efficiency formaldehyde removal filter and HEPA filter in the filter. The net is decomposed so that the formaldehyde content in the circulating air will continue to decrease, and the air purifier with negative ion function can also release the high-energy negative ion micro fan to send out the negative ion gas stream and the formaldehyde in the air for a chemical reaction. The reaction decomposes the formaldehyde in the air.

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