Indoor air pollution is being valued by more and more people. Experts suggest that it is a good choice to have an effective air purifier at home. Which shape is better for the purifier? What is the relationship between clean air output ratio and room size? Can the purifier be turned on at the same time as the kitchen hood?
1. Regular cleaning of the filter element can extend the service life. Air purifiers can help consumers purify the air in the room, but they also need to be cleaned up in time. Every two weeks or one month, the cleaner air outlet, air inlet, and internal filter element are regularly wiped and dusted, which can extend the service life of the filter core and greatly reduce the maintenance cost of the product. 2, long-term power supply, avoid direct contact The use of purifiers is not a short-term effect, but similar to refrigerators, air conditioners, etc., and needs to be used for a long time. In addition, if an air purifier such as electrostatic electret technology is used, since there is a high voltage inside, it is necessary to keep a certain distance from it during use, and do not disassemble the machine. 3, indoor center placement can achieve the best results The purifier is not a household appliance and can move freely at home. Therefore, when using it, it should be placed in the indoor center as much as possible to clean the indoor air in 360 degrees. Only putting the purifier in the corner of the room will reduce the efficiency of the purifier, so that the indoor air cannot be uniformly purified. 4. After the start-up, the wind is run and then cleaned with a small wind. When using a top-rated air cleaner at home, it is best to use a large windshield for 30 minutes after the machine is turned on, so that the indoor air can be quickly filtered once to improve the indoor air quality quickly. Then gradually reduce the air volume of the purifier to prevent the noise from affecting the daily rest of the family. 5, keep the doors and windows closed, properly ventilated In order to avoid the impact of outdoor dust and bacteria on the indoor air, it is necessary to keep the doors and windows closed, but long-term sealing will cause air turbidity and bacterial growth. Therefore, when the outdoor pollution is light, the window can be properly ventilated.
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Is it effective to remove formaldehyde using an air purifier?
After the home decoration\office renovation, the most important job left is to add furniture. In the process of adding furniture, the most worrying issue is the problem of formaldehyde, especially the formaldehyde content of some furniture exceeds the standard, and the consequences are unimaginable. In order to get formaldehyde, many people recommend using an air purifier to remove formaldehyde on the Internet. Is it effective to use formaldehyde in addition to air purifiers?
I. About furniture and air purifiers In daily life, formaldehyde is a common condition after renovation. We all know that various materials will be used in the decoration. If the quality of the materials is poor and the manufacturer is not regular, it is likely that formaldehyde will exceed the standard and cause harm to the human body.
The new furniture purchased is actually no less than the formaldehyde content of the decoration. In particular, in order to save money, some owners will buy some cheap sheet metal furniture. This furniture is made of wood board and glue. The formaldehyde content in the glue is the most, and it is the easiest to exceed the standard, which brings danger to the residents. To avoid excessive formaldehyde, we must ensure the quality of the furniture.
However, even if everyone can guarantee the quality of a single piece of furniture, formaldehyde within a reasonable range, it is impossible to ensure that the formaldehyde content of the furniture in the whole house is within a reasonable range. If it is qualified, the ten items may exceed the standard. In addition, the incubation period of formaldehyde is very long, generally, three to fifteen years is possible, if it is not solved, the damage is very large.
Many people now buy air purifiers to improve the air quality of their homes. In modern air purifiers, some technologies for removing formaldehyde, such as activated carbon filters, photocatalyst technology, and negative ions, are added.
Second, how long is the air purifier open? In order to save electricity, many families often feel that it is enough to open the air purifier for two or three hours a day. In fact, the air purifier does not consume much power and can set the sleep mode. The user does not need to worry about the power consumption of the user. However, if you only open two or three hours a day, it is not effective for removing formaldehyde from newly renovated or newly-furnished homes.
3. Can the air purifier remove formaldehyde? The top 10 home air purifier is mainly an indoor micro-circulation filter device, which can enhance the freshness of the indoor air for the sealed space. It can help remove formaldehyde, but it can’t put all the hope on the air purifier.
The air purifier test results of the relevant departments reflect that some air purifiers can reduce the concentration of formaldehyde in the air, but the purification rate is very slow. They also proposed that in order to reduce the risk of formaldehyde over-standard, in addition to paying attention to the function of the air purifier, the focus is to start from reducing pollution sources.
All in all, according to the performance evaluation of the 10 air purifiers on the market, the relevant departments showed that formaldehyde could not be removed at all. Even if some high-quality air purifiers can purify formaldehyde, the rate of formaldehyde removal is very slow. Some users think that it is enough to open an air purifier for two or three hours a day. As a result, the formaldehyde content is still exceeding the standard. Air purifiers are not the best choice for removing formaldehyde.
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What is the working principle of the air purifier?
The air purifier is mainly composed of a motor, a fan, an air filter and the like. The working principle is that the motor and the fan in the machine circulate the indoor air.
The polluted air passes through the air filter in the machine to remove or adsorb various pollutants. Some models of air purifiers also install an negative ion generator at the air outlet (the high voltage in the negative ion generator generates DC negative during operation). High pressure), the air is continuously ionized, a large amount of negative ions are generated, and is sent by the micro fan to form a negative ion airflow, so as to clean and purify the air.
The main principle of the passive air purifier is to use the fan to pump air into the machine and filter the air through the built-in filter, which can mainly filter dust, odor, toxic gas and kill some bacteria. The filter screen is mainly divided into: a particulate filter and an organic filter. The particulate filter is further divided into a coarse filter screen and a fine particle filter screen. 2, active purification principle (no filter type)
The fundamental difference between the principle of an active top rated air purifier and the principle of passive air purging is that the active air purifier is free of the limitations of the fan and the filter.
It is not passively waiting for the indoor air to be pumped into the purifier for filtration and purification. Instead, it effectively and actively releases the purification and sterilization factor into the air. Through the characteristics of air diffusion, it can reach the corners of the room to clean the air without dead angle. 3, double purification class (active purification + passive purification)
This type of purifier combines passive purification technology with active purification technology.
Extended information: Purification effect First compare it from air purification efficiency. In the air purifier of the passive adsorption purification mode, since most of the air purifiers are used in the mode of the fan + filter, the flow of the air using the air is inevitably dead.
Therefore, passive air purification can only produce a certain purification effect around the air purifier. It takes a long time to filter all the indoor air, which is difficult to produce an effect on the purification of the entire indoor environment.
Active air purification utilizes the diffuse nature of air to bring the purification factor to all corners for air purification. The air can diffuse to the place where it can be purified.
Comparing with the negative ion air purifier, it is found that after the negative ions are released from the air, the negative ions can actively attack, find the pollutants in the air, and agglomerate into a group, and actively settle them. From this point of view, active air purification has obvious advantages. The negative ion air purifier is different, not only can effectively remove particulate pollutants in the air, decompose harmful gases such as formaldehyde, provide clean air to the indoor environment, and provide air negative ions that have an efficient effect on human health care in the indoor environment. Make indoor air quality the standard of “healthy air”.
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There is an air purifier in the house, and there is no need to install a fresh air system?
It’s almost smog, and almost every day, a friend asks a question: Is there an air purifier at home, and is there a need to install a fresh air system?
Main functions of the fresh air system
Personal opinion: The most important role of the home fresh air system is to improve ventilation.
The original intention of the fresh air system was to improve the ventilation of large indoor spaces. To put it bluntly, as long as it is a device that can speed up indoor and outdoor air exchange, even if it is only an exhaust fan that can pump air inward or outward, it can be regarded as a kind of fresh air.
Later, people found that although the simple ventilation was supplemented with oxygen, the outdoor air was not so pure, so a purification device such as a HEPA filter or an electrostatic dust collector was added to the air inlet. Come, the air entering the room is relatively clean, and after running for a while, the indoor air can reach a relatively good level.
This is the common home fresh air system nowadays. PS, fresh air has many functions (such as dehumidification, humidification, heat exchange) because it is only for the friends who are most concerned about the current function of the friends around, it is not launched one by one.
From this brief introduction, you can see the two most important functions of the fresh air system: Ventilation and ventilation, discharge carbon dioxide from the room, and inject fresh air; Filter dust from outside air and pollutants such as TVOC;
What is the purification capacity of the fresh air system?
Many people are recognized for the ventilation function of the fresh air system, but their purification ability is somewhat inaccurate.
On the market today, most qualified fresh air systems have a purification capacity consisting of two major aspects:
HEPA filter adsorption at the air inlet, or electrostatic dust collection. This is a good understanding, the air is purified before entering the room, and the principle of the air purifier is the same; Micro-positive pressure; this principle is slightly rounded, but it is indeed the advantage of the new fan compared to the purifier. To put it simply, when the fresh air is pumping into the room, the indoor air pressure is slightly higher than the outdoor air. In this way, dirty air outside can not enter the room along the door and window.
Inflate the balloon as an example.
The pump is like a fan of the fresh air system, and the balloon is like our room. If the balloon is perfect and airtight, then the balloon will swell up quickly.
But all the rooms can’t be completely sealed. In fact, pm2.5 is also going into the room along with these eyes.
It’s like a leaking balloon. So what happens if you are pumping up a leaking balloon?
Is it possible to “squeak” out of the air in the place where the air leaks, so can the gas outside the balloon enter the balloon from these loopholes? Of course, it will not work. In this way, the indoor air is kept clean as much as possible.
Therefore, the conclusion is that qualified new wind turbines are also reliable.
Fresh air system PK air purifier
This is a question that everyone is very concerned about. It is a bit clear to say.
As an example of brain-destroyed mathematics that everyone has done in elementary school, you know the difference between the two.
The air in the room is like the dirty water in a swimming pool.
The way of the fresh air system is to reserve a good entrance and exit in the swimming pool while pouring tap water into the pool and releasing water (how many minutes can you change the water?)
The air purifier is different, only need to use a pump, pumping water from the pool, filtering and then returning to the pool (how many minutes can you filter the water?)
(Note my wording: the new wind is “changing” and the purifier is “filtering”)
This shows the difference between the two:
The installation of the fresh air system is larger. In addition to the installation equipment, the air inlet and outlet are reserved, and the pipeline type also needs to be buried. At the same time, the efficiency of purification is relatively low, and the cost (including the replacement of the filter element, electricity bill, etc.) is also larger. The advantage is that because there is always fresh air injection, you will not feel “squeaky” because of lack of oxygen, and once the original dirty air is discharged, the room is easier to maintain a cleaner state;
The best and cheap and best air purifier is more efficient in clean air and relatively inexpensive. The only downside is that because it has been circulating in the room all the time, it is easy to lack oxygen and it is easy to feel “boring”.
After all, the air purifier can quickly remove the smog and reach the most basic air quality, but it can’t do anything about the problem of low oxygen and high CO2. For the foggy area, the purification ability of the fresh air system does not account for the advantage, the pain point that it really wants to solve is the ventilation problem in the smog period.
Therefore, my personal point of view is that just to remove the shackles, close the doors and windows, and pick up a good air purifier; but considering the quality of life, prepare for long-term trenches, especially if you have children, match the new wind. The system is the best!
Filter life problem Maintenance costs may be the biggest headache for the fresh air system.
Because the fresh air is pumped from the outside, it is equivalent to working in a hazy environment, which makes the filter consumption very fast. In addition, due to the limitation of space volume, the fresh air is often thinner.
I have calculated that in the heavy haze days, many imported new fan filters (foreigners do not consider my national conditions at all), often need to be replaced once every 3 to 5 days, otherwise the purification efficiency will plummet.
However, smart engineers have developed internal circulation functions on new wind turbines. To put it simply, in the case where the indoor CO2 concentration is not high, the air is not exhausted from the outside but is changed from the indoor air, which actually becomes an air purifier.
If there is a new wind, you don’t have to worry about decoration pollution.
This is actually a digression. I have seen the previous articles of the Loofah dad know that the personal pollution of the decoration is relatively conservative. After all, this is a toxic and non-toxic category, and it is sloppy.
In theory, if the air volume of the fresh air system is large enough, it is very fast to discharge the formaldehyde and other pollutants accumulated indoors.
At present, personal observations of many users’ measured results do not seem to be so ideal. A detailed analysis, there are two reasons:
1, the air volume is not big enough; not enough to quickly dilute the concentration of indoor pollution gas; because under normal circumstances, the family generally does not let the new fan work at the maximum file;
2. The fresh air system itself is also likely to have its own source of pollution (a few products with poor workmanship). Because the glass and the pipe will be glued when the fresh air is installed, and the fixed HEPA filter and the frame are also useful for the glue. Therefore, if the materials used in these places are not good, they will be self-contained.
Therefore, even if a new wind is installed, it cannot be relied on, and it still takes a long time to monitor.
Summary two sentences
Finally, briefly summarize two sentences: 1. The new wind is reliable, and its greater role is to solve the problem of ventilation and improve the quality of life; this must be clear;
2, the best combination of the home is still a fresh air + air purifier, the two have their own advantages, complement each other; there is space to install, and the family with this budget, it is worth loading.
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How does the air purifier purify the air? Be alert to secondary pollution when using
When the smog weather occurs, the air purifier becomes the new favorite of the family. Air purifiers can adsorb, decompose or convert various air pollutants, including PM2.5, dust, pollen and more.
How does a cheap and best air purifier remove particulate matter from the air? There are currently three main methods: mechanical filter type, electrostatic electret filter type and high voltage electrostatic dust collection.
The mechanical filter is a physical interception, which uses a filter to filter out particles in the air. In order to improve the purification efficiency, the filter structure needs to be very dense, and the impact force of the airflow on the filter screen is relatively large, so the filter has a short life.
The electrostatic electret filter is a dielectric material made of a polypropylene film, which can store space charges for a long time and utilize the electrostatic force of the charge to trap dust particles. The air is filtered by the electrostatic electret material, and the dust removal wind resistance is low, and the high capturing efficiency can be achieved with low energy consumption.
High-voltage electrostatic dust collection uses a high-voltage electrostatic field to ionize the gas so that the dust particles in the air are electrically adsorbed to the electrodes. This method of dust collection has a small wind resistance and a high efficiency for collecting dust from smaller particles. However, the effect of capturing larger particles and fibers is poor, and it is easy to discharge. The cleaning takes time and effort, and ozone is easily generated to form secondary pollution.
In addition to the above three-particle removal technologies, newer air purifiers currently have negative ion and plasma methods. The two methods of removing dust particles are similar to high-voltage electrostatic dust collection. All of the particles in the air are charged and coalesced to form larger particles. However, the particles are not actually removed, but they are attached to the surface, which is likely to cause dust to rise again.
General household air purifiers are mainly filtered type and electrostatic type. The main difference between the two is that the filter type is equipped with a HEPA (High-Efficiency Air Filter) filter that needs to be replaced, but the electrostatic type does not. The electrostatic air purifier needs to clean the electrostatic dust collecting parts frequently. The filter air purifier is the most common type of product on the market, and its magic weapon is safe and efficient.
The most harmful to the human body in the air is dust less than 2.5 microns because it penetrates cells and enters the bloodstream. Electrostatic air purifiers filter dust, smoke, and bacteria that are smaller than cells. Using a high-voltage electrostatic field of about 6000 volts, it can instantly kill bacteria and viruses attached to dust and prevent diseases such as colds and infectious diseases.
The core of the filter air purifier is the filter, and each purifier has several layers of different functional filters. The filter is dirty and the water cannot be washed and must be replaced. When the filter material is saturated, it becomes a “source of pollution” and secondary pollution occurs. Therefore, even in the case of good air quality, the filter can not be used for more than half a year.
Some merchants claim that air purifiers can remove formaldehyde. Is this true? The evaluation results of the National Indoor Interior-Environment and Environmental Product Quality Supervision and Inspection Center show that the existing air purifiers are basically ineffective. As a consumer, you must have a pair of eye-catching eyes, don’t be fooled by the publicity of the business.
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Quickly remove formaldehyde and live in a new home, use ventilation + air purifier
The indoor environmental pollution is mainly caused by the presence of various volatile organic compounds in the indoor air, such as decoration materials, furniture, incomplete combustion of fuels, and chemical agents, which cause air pollutants to accumulate in confined spaces for a long time and cause pollution to the indoor environment.
In family life, decoration pollution mainly exists in the form of gas. The more common pollutants are formaldehyde, benzene, ammonia, TVOC, and other pollutants. Formaldehyde is mainly found in various types of non-environmental plates, paints, paints, and decorations. Formaldehyde is harmful to human health and may cause cancer in severe cases. Benzene, ammonia, and TVOC scavengers are mainly found in paints, paints, and wallpapers. The easy diffusion of benzene in the air can cause damage to the human hematopoietic system and affect pregnant women and fetuses.
The resistance of different people to pollutants is not the same, so how long it takes to stay can not be generalized.
Generally speaking, ordinary adults can stay in the air for 3 months after the renovation is completed. However, if you still can smell the irritating smell when you check-in, you need to consider delaying the stay. It is best to ask the professional organization for indoor pollution detection. Secondly, the later the check-in time, the better. If it is necessary, it must be more than half a year and use various measures to remove pollution at home.
Therefore, many new homeowners will use various methods to remove formaldehyde after renovation. Although they cannot be completely controlled, we can reduce indoor pollution to a minimum by some means.
In order to be able to quickly and safely enter the new home, the following several methods for removing formaldehyde are recommended.
1 ventilation The preferred choice for household formaldehyde removal is to maintain good ventilation. This is mainly due to the low cost of ventilation and easy operation. The circulation of indoor air can accelerate the drying of paints and the like, thereby releasing harmful gases and discharging them outside through air circulation.
However, everyone has overlooked one point: What is the effect of ventilation? In fact, the effect of window ventilation depends mainly on various external factors such as weather, range, and type of house. If there are rain and rain, we can’t open the window, and the ventilation will not be able to play a role. In addition, for example, the reason for the type of house, the house is in a leeward place, or the windows in the home are rarely conducive to ventilation (many families are dark guards). Therefore, if you want to rely solely on ventilation to remove formaldehyde, it is best to dispel this idea as soon as possible and cooperate with other methods of removing formaldehyde.
2 air purifier The use of technology as much as possible, in addition to ventilation, if the economic situation allows, you can consider the use of air purifiers, even the installation of fresh air systems will receive better results.
Air purifiers are a new type of household appliances that have entered Chinese homes in recent years, mainly to clean indoor air. The core technology of air purifiers is physical filtration. The fan inside the purifier “pushes” the indoor air into the machine and isolates the contaminants through the filter. The filter has a certain pore size and different sizes of pores, which can isolate particles of different diameters.
The decoration pollution is a gaseous pollutant, the diameter is much smaller than the particle pollutant, less than PM2.5, and can not be isolated by the filter. Therefore, most air purifiers can only remove particulate contaminants, and they are also helpless with gaseous pollutants such as formaldehyde and benzene. Therefore, in addition to formaldehyde must choose a formaldehyde air purifier. In addition to formaldehyde air purifiers must have two points: First, the filter layer can absorb + decompose formaldehyde, which not only can firmly lock the formaldehyde but also prevent secondary pollution from escaping. Second, it is necessary to accurately display the value of formaldehyde, so that it can detect the change of formaldehyde value in the whole house. It is clear at a glance, and people are very relieved!
3 Activated carbon Activated carbon is a self-porating adsorbent that absorbs formaldehyde from the air and stores it in its own pores. Because most activated carbons have better absorption capacity, but only by absorption to control pollution, it will not be long before it reaches saturation. At this time, the activated carbon can not only play the role of removing formaldehyde but also become a source of pollution to release the absorbed formaldehyde. Therefore, when it is generally used for about 3 months, it is recommended to throw away the old activated carbon, replace it with new charcoal, or choose a new type of activated carbon such as coconut coke, which will last for a long time.
4 Nano live ore Nano-live ore is imported from the active volcanic ore, sepiolite, and other pure natural ore and non-metallic rare earth ore, through deep purification and scientific ratio, through the original process to improve the finely produced particles. All of them are international mainstream natural environmentally friendly raw materials, with extremely developed Emi and nano-scale pores (1 angstrom = 10 nm), and the micropore diameter is concentrated at 0.23-0.91 nm, which is 5000 times that of the same-body activated carbon. Toxic and harmful gases such as formaldehyde, benzene, ammonia, hydrogen sulfide, sulfur dioxide, TVOC, etc.
Nano live ore has the advantages of decomposability, long life, and no secondary pollution.
5 Increase air humidity The increase in indoor air humidity can condense many small water droplets in the indoor air, and the formaldehyde floating in the air is absorbed by these small water droplets. However, since the water droplets gradually evaporate over time, the absorbed formaldehyde is released again, and thus it can be seen that this method cannot be applied to long-term removal of formaldehyde.
The above four methods are the most mainstream and most effective methods for removing formaldehyde. Many households choose formaldehyde and top 5 large air purifiers in addition to formaldehyde. In the weather that is not conducive to window ventilation, the best room air purifier is turned on in addition to formaldehyde. , Convenient and practical.
Summary of invalid methods: Although the plant can absorb a small amount of formaldehyde, the absorption is very small, which is a drop in the bucket for decoration pollution. The peel can’t remove formaldehyde, can’t absorb formaldehyde, and can only cover the decoration taste with aroma. The vinegar is similar to the peel and does not react with formaldehyde. It only uses a pungent odor to cover up the taste of the decoration. Governance methods must be scientifically chosen, and must not be used to save money and listen to rumors, and delay the timing of governance to endanger health.
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After the winter heating period, the smog continued to invade all over the country. Some people think that indoors are safe, and fog can’t get in. In fact, smog is composed of particles such as dust, sulfuric acid and nitric acid in the air. PM2.5 is an invisible particle. These materials are smaller than the visible range of human eyes. The slits are the way they invade the room. Some people think that I stay indoors every day, there is a fog outside, but it doesn’t matter. In fact, the time we spend indoors every day is 2/3 longer than that of staying outdoors. If a person works long hours in an environment with poor air quality, it will be prone to dizziness, chest tightness, fatigue, and nausea. These five groups need to pay more attention to the quality of the air environment. Office white collar If the office space is relatively tight, the air is not circulated, the air is dirty, and the oxygen content is low, the mental state of the whole person will be poor. Women, especially pregnant women In fact, indoor air pollution is not less than outdoor air pollution. The indoor pollution mainly comes from the harmful gases generated by the home decoration. The formaldehyde toluene gas is the four biggest killers of decoration pollution, and the boiling point of formaldehyde is very low 19 degrees. It is the warmth of our indoors that will cause the aggravation of formaldehyde to be released. The release of formaldehyde toluene is not released in one or two months, and its incubation period is as long as 5 to 10 years; The investigation found that all kinds of artificial board glues used in decorative materials and furniture, etc., of which free formaldehyde is a suspicious carcinogen, long-term exposure to low-density formaldehyde can cause chronic respiratory diseases, or the physical condition of newborns is reduced, etc. Because women have more fat and benzene is easy to store in fat after absorption, women should pay more attention to the harm of benzene; women should avoid contact with decoration pollution before pregnancy and during pregnancy; child The child’s body is developing, the immune system is fragile, and children’s breathing is 50% higher than adults, making them more vulnerable to indoor air pollution. At present, formaldehyde, such as benzene, produced in home decoration can cause leukemia and aplastic anemia. The more serious the environmental pollution, the higher the abnormal rate of lung function in children, and serious air pollution can increase the risk of abnormal lung function in children by 30%-70%. Elderly Air pollution is not only an important cause of respiratory diseases such as bronchitis, pharyngitis, and pneumonia in the elderly but also induces hypertension, cardiovascular diseases, and other diseases. Respiratory diseases In an indoor environment, especially without ventilation, in a crowded environment, some pathogenic microorganisms are easily spread through the air, causing infection in susceptible populations. The screen of our negative ion home air purifiers for large rooms is explained to you. Seven purification filtration system 1. Aluminum alloy front filter It adopts aluminum alloy frame and multi-layer corrugated aluminum mesh, which is firm and not as easy to break as the gauze filter.
2. Low-temperature catalyst filter Adopting the industry-leading cold catalyst technology, its advantage is that it can quickly decompose harmful gases in the air and kill bacteria and virus germs at room temperature. 3. Special effects in addition to formaldehyde filter Made of natural nano-scale mineral stone material, which is superior to the activated carbon filter on the market, because activated carbon has limited ability to absorb formaldehyde. Once saturated, it can not only work normally but also cause secondary pollution. Its formaldehyde removal rate is as high as 92%, and the activated carbon filter is 40%-50%. 4.AATCC antibacterial cotton filter This layer of filter is unique to the poly-meter high-efficiency negative ion best small room air purifier. It is filled with antibacterial cotton. This filter also adds an enzyme bio-biocide, which has an efficient removal effect on aphids and bacteria. 5.HEPA high-efficiency filter The HEPA filter can filter out tiny particles larger than 20 nanometers in diameter, and the filtration effect is 99.97%, which achieves dust removal and sterilization. 6.UVA sterilization The 365 nm light wavelength is used for sterilization, and the bacteria absorb ultraviolet rays, causing DNA strand breakage and causing bacterial death. 7. Dual-core negative ion generator Release negative ions. Negative ions are beneficial to the human body, increasing oxygen supply to the brain, promoting blood circulation and metabolism, improving human immunity and improving the respiratory system.
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Nowadays people are living in a worse and worse environment. Endless industrial emissions and ubiquitous automobile exhausts have led to increasing air pollution. Studies have shown that contemporary people living in dirty air will lose 10 years of life! The haze weather, PM2.5 has warned people of the serious impact of air pollution. The indoor air pollution poses a greater threat to the human body, so many consumers have purchased top rated air purifiers for large rooms. However, there are always many consumers who have a question in mind: Is the large room HEPA filter air purifier useful? Beijing TV’s “Life Face to Face” program has been useful for air purifiers. The program team once experimented with two air purifiers at the Environmental Quality Testing Center of Tsinghua University to explain whether the air purifier is useful. The test results in the sealed environmental chamber reduced the concentration of respirable particulate matter in tank 1 by 65% and the concentration of respirable particulate matter in tank 2 by 59.5%. It can be seen from the experimental results that the air purifier can effectively reduce the inhalable particulate matter, thereby effectively indicating whether this problem is useful in the air purifier. Consumers can also judge the usefulness of air purifiers from the principle of air purifiers. There are three principles of air purifiers: passive purification (filter purification), active purification (no filter) and dual purification (active purification + passive purification). The passive air purifier principle draws air into the machine through a fan, filters the air through the built-in filter, and can filter dust, odor, toxic gases and kill some bacteria. The principle of the active air purifier is free from the limitation of the fan and the filter screen and effectively releases the sterilized silver to the air to achieve air purification in all corners of the room.
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1) Settling particles in the air to effectively settle various inhalable suspended particles in the air such as dust, coal dust, smoke, fiber impurities, shavings, pollen, etc., to avoid causing allergic diseases, eye diseases, and other diseases.
2) Remove microorganisms and pollutants from the air, effectively kill and destroy bacteria and viruses in the air and on the surface of objects, and remove dead dandruff and pollen from the air to reduce the spread of diseases in the air.
3) Effectively eliminate odor, effectively remove the strange smell and polluted air emitted from chemicals, animals, tobacco, oil smoke, cooking, decoration, garbage, etc., and replace indoor gas continuously for 24 hours to ensure a virtuous circulation of indoor air.
4) Rapidly neutralize chemical gases, effectively neutralize harmful gases emitted from volatile organic compounds, formaldehyde, benzene, insecticides, aerosol hydrocarbons, and paints, while at the same time reducing the discomfort caused by inhaling harmful gases.
So, can the air purifier really eliminate pm2.5?
Air purifiers have become a must-have home appliance for many families. They have a small role in indoor air purification. They can detect and filter PM2.5 in the air and effectively protect the family’s respiratory health. In the smog weather, the indoor anti-mite air purifier can not be less.
Is the air purifier effective for removing formaldehyde?
First of all, we must understand that formaldehyde is produced by decoration and raw materials, and it cannot be removed for a long time. To solve the problem of formaldehyde permanently, it is necessary to remove the pollution source of the decoration or raw materials from the source. Otherwise, it can only be treated by formaldehyde, but if the formaldehyde exceeds the standard, then the treatment can not be completed. The air purifier is an auxiliary means, it is recommended to open 24 hours, which has a certain elimination effect on formaldehyde.
So what is the best way to remove air purifiers?
Most of the air purifiers are composed of HEPA filter and activated carbon filter. HEPA is mainly used to purify solid pollutants such as dust and PM2.5. The activated carbon filter is mainly used to adsorb volatile gases such as formaldehyde and odor.
There are two necessary conditions for indoor air quality to meet certain cleanliness standards.
First, it must be ensured that the indoor air reaches a certain number of air changes, that is, the fan built in the cleaner has a certain amount of air.
Second, the purification efficiency of the cleaner must be relatively high. Clean Air Volume (CADR) is the physical quantity that quantifies the two necessary conditions above the cleaner.
In general, the larger the CADR value, the higher the purification efficiency of the purifier. That is the clean air output ratio, which directly affects the purification efficiency. The higher the CADR value, the higher the purification efficiency of the purifier and the larger the applicable area. It can be seen that CADR is an important indicator to measure the excellence of an air purifier, but note that this is not the only or dominant indicator.
What should I pay attention to when purchasing an air purifier?
The brand, function, performance, design, and price of the air purifier are very different and dazzling. Consumers are advised to purchase products according to their actual needs, not as many features as possible. For example, for consumers who need to protect PM2.5, it is recommended to choose an air purifier with an outstanding PM2.5 purification capability. Newly renovated homes can focus on air purifiers that have outstanding formaldehyde and toluene capabilities.
At the same time, when purchasing, try to choose a big brand, the quality will be more secure.
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