At present, there are two kinds of so-called air purifiers on the market, one is the filter type air purifier and the other is the ionized air purifier. In the end, I have not asked if I believe that the consumers will know it after using it. The disadvantage of the filter household air purifier is that the cost of consumables is high, the replacement of the filter screen is inconvenient, and it is easy to cause secondary pollution. The disadvantage of ionized air purifiers is that they are prone to ozone, and the so-called negative ion diffusion is almost ineffective. Why does the filter air purifier cause secondary pollution? In fact, this is not difficult to explain. It consists of a motor, fan, air filter and other systems. The motor and fan in the machine circulate indoor air. The polluted air passes through the air filter inside the machine to remove or adsorb various pollutants. The harmful substances are adsorbed on the filter net, and the harmful substances such as formaldehyde, toluene, ozone PM2.5, PM0.01, PM5, and PM10 are very high. Then, if it is not applicable, it will evaporate twice as the temperature changes. Therefore, it is necessary to change the filter frequently to form a high cost of consumables. So why does the ionized home air purifier say that the diffusion of negative ions is slow and easy to produce ozone? This is actually adding a so-called negative ion generator to the tuyere. The approximate effect is the same as the filter type. There is also a product called Senkong Machine (Forest Air Manufacturing Machine), which produces negative oxygen ions, which are medically known as “life vitamins”, “longevity” and “air vitamins”. principle “Forest air (negative oxygen ion) manufacturing system (machine)” that simulates the natural ecological environment. Designed in accordance with the principles of “Nature Ecology (Photocatalytic Nanotechnology), Lenal Effect and Water-borne Waterfall”. In the “nano-photocatalytic chamber”, it produces a vitamin-rich negative oxygen ion that is rich in people’s vitality, reaching or exceeding the levels of “negative oxygen ion” in many mountains and forests. Then what is negative oxygen ion? Negative oxygen ion refers to obtaining one or more electrons with negatively charged oxygen ions. Negative oxygen ions, known as “air vitamins”, are beneficial to the body’s physical and mental health. It mainly affects the human body’s physiological activities through the human nervous system and blood circulation.
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Through the investigation of some air purifiers that can remove formaldehyde on the market, it is found that there are mainly seven kinds of air purifiers on the market. 1. Activated carbon adsorption technology The porous structure of activated carbon gives it an adsorption property. In the selection of the amount of activated carbon and the size of the activated carbon, it is necessary to fully consider the influence of airflow and other factors. Selecting an appropriate amount of filling and a suitable particle size can fully and effectively enhance the adsorption capacity of the air purifier containing the activated carbon filter. In addition, most of the commercially available air purifiers are modified activated carbon. Air Proce’s AI-600 air purifier contains a combination of modified activated carbon and impregnated activated alumina TVOC filter. Activated carbon adsorption technology is relatively mature, but there are still deficiencies. Activated carbon is only adsorbed and does not decompose, and the adsorption saturation state of activated carbon is only temporary. This results in the activated carbon being cleaned or replaced in time if the adsorption of the activated carbon is saturated. This adds to the cost of used invisibly.
2. HEPA high-efficiency filtration technology HEPA (High-Efficiency particulate air filter) in the multi-layer filter in the air purifier shows a more important role. HEPA has an air filtration efficiency of more than 99.97% for 0.3 μm aerosols and is commonly used to remove submicron aerosol particles. In general, HEPA is randomly arranged from fibers having a finite specific surface area of 0.5 to 2 μm in diameter. Therefore, the high filtration efficiency of HEPA is usually at the expense of high resistance and low dust holding capacity. Oransi’s EJ120 air purifier uses HEPA high-efficiency filtration technology. The filter screen of the commercially available air purifier is not single, and the modified activated carbon filter is mainly combined with the HEPA filter, such as the Philips AC4076/01, Dyson Pure Cool AM11, and 352 X80 air purifiers. It is a composite filter.
3. Negative ion technology Negative ions can effectively remove a variety of toxic and harmful pollutants in the air, such as solid particles, soot, some VOCs, etc., because the pollutants in the air are basically positively charged, while the negative ions and particles generated by strong electric fields Contaminants and the like combine to form “heavy ions”, and sedimentation or adsorption occurs. Negative ions can also kill bacteria, and the purification effect is good. However, the household air purifier using this technology generates ozone and nitrogen oxides while generating negative ions, causing secondary pollution. The first country to apply negative ion technology to air purification is Germany. In addition to Germany’s advanced technology, Japan is also recognized as the world’s leading technology. In the 1980s, China began to introduce negative ion technology and developed and sold air purifiers using this technology. Air purifiers such as Mitsubishi Heavy Industries SPA-582AC, Leopard Rice Air Purifier 2, Panasonic F-PDF35C and Haier KJ-F200/EA all use negative ion technology combined with various filters to achieve efficient removal of indoor pollutants.
4. HIMOP material filtration technology HIMOP (Hyman), a high-performance composite strong oxidized modified ceramic particle, is a mung bean-sized spherical particle with a honeycomb magnetic pole surface. The material quickly captures harmful pollutants such as formaldehyde, benzene, TVOC, ammonia, and sulfur dioxide, and rapidly destroys its molecular structure and oxidizes it to carbon dioxide and water. The Hemman material is highly specific for formaldehyde and can be brought to national standards (0.1 mg/m3) in one hour. The Hayman air purifier consists of a 5-layer filter composite, one of which is a sieve of Heimer material. Although the removal of formaldehyde and other contaminants is good, the material is expensive and has higher production costs than other technologies.
5. Low-temperature asymmetric plasma air purification technology Low-temperature asymmetric plasma technology forms an asymmetric plasma electric field through high-voltage, high-frequency pulse discharge, causing a large number of plasmas in the air to collide step by step, resulting in a series of physical and chemical reactions, such as “avalanche effect.” The process of purifying the air with VOCs is described as a collision between high-energy electrons and VOCs, and the generation of free radicals and other active substances to purify VOCs. This technology has the advantages of energy-saving, no washing and washing, and strong purification ability. However, the downside is that the technology is currently widely used in industrial applications, and the technology has not yet been popularized in indoor air purifiers.
6. Photocatalytic Decomposition Technology Photocatalysis was discovered in 1972 by A. Fujishima and his instructor K. Honda. TiO2 semiconductors exhibit similar plant photosynthesis reactions under light conditions. The photocatalytic oxidation of formaldehyde in the production of formic acid intermediates that ultimately produce water and carbon dioxide. The research of photocatalysis technology is mostly in laboratory research, and there are not many types of research on the application of this technology in air purifiers. Air purifiers such as 3M, DESAY L352 and cado AP-C500-BK use this technology to remove indoor formaldehyde. In addition to the air purifier, the interior decoration will also mix TiO2 with concrete or plate the surface of the wall or ornament. This technology is highly efficient in removing formaldehyde and can decompose part of the pollutants. However, the fly in the ointment is that the technology requires ultraviolet light, and excessive ultraviolet light can cause various adverse symptoms in the human body. 7. Cold catalyst technology The biggest difference between cold catalyst technology and photocatalysis technology is that it does not require light to react. At normal temperature, the cold catalyst degrades while adsorbing formaldehyde, and decomposes formaldehyde and other harmful gases to form carbon dioxide and water. Although the cold catalyst technology has a good adsorption and decomposition effect, as the temperature and pressure change, the harmful gas adsorbed in the cold catalyst may desorb and pollute the air again. The Kirpal air purifier and the Chulux CL-AP2 air purifier apply this technology. Among the above principles of operation, the seven technologies used in air purifiers have their own advantages and disadvantages. Among these technologies, photocatalytic degradation technology has the advantages of economy, environmental protection and complete degradation of organic matter. At the same time, photocatalysts (such as TiO2) have the advantages of low cost, safety, high stability, high photocatalytic activity, etc., which can promote room temperature. Oxidation of major pollutants in indoor air.
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People who are concerned about indoor air health will certainly not be unfamiliar with air purifiers. There is an air purifier at home, and it is always refreshing to breathe every day. And how much do you know about the working principle and type of air purifier?
First of all, 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 home air purifiers also install a 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 number 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 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.
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Detailed steps, how to clean and maintain the air purifier?
With the air quality going on, more and more families are starting to use household air purifiers. However, unlike ordinary household appliances, air cleaning requires regular cleaning and maintenance, otherwise, it will affect the machine and health:
For example, the damage filter and the life of the machine itself can be used for one year. If the maintenance is not paid attention to, it may be scrapped in half a year;
In addition, the purification efficiency will be greatly reduced, so it must be scientifically used, pay attention to maintenance ~
What is the use of science?
Use in a dry environment
In a humid environment, it is easy to breed bacteria; secondly, floating water mist will be detected as harmful particles, increasing the networking pressure.
Many people opened the humidifier at the same time as they had a good night’s sleep. As a result, the net was full of horsepower and screaming, but they couldn’t sleep.
Placement
In order to facilitate the room to walk, but the empty net in the corner; worry about the formaldehyde emitted by the furniture, empty and directly placed on the side?
In fact, this will only hinder the circulation of airflow into the wind and the wind, and reduce the rate of air renewal.
The best position is of course placed in the middle of the house. I really worry about getting in the way of my feet. At least I have to leave the wall more than 1m away.
How to properly maintain and maintain?
External maintenance of the chassis
Empty nets After a long period of use, the chassis must be attached with dust. Pay special attention to the dirt near the sensor, because they will affect its sensitivity, and let some harmful substances gradually become the “fish of the net!”
The sensor is often narrower and needs to be cleaned with a soft brush before it is wiped clean with a dry cotton swab. It is recommended to clean it every 2 months. (Do not clean the sensor with detergent or metal objects).
The rest of the chassis can be wiped with a damp cloth or a softer towel.
Next is the heavy head! Air purifiers generally have three layers of screens, each of which is made of a different material to absorb different air pollutants, so it needs to be cleaned in different ways:
▪ Primary filter ▪
In the outermost layer of the empty net, it mainly absorbs large pollution such as hair, pet hair, sand, and gravel; generally, it is cleaned 1-2 times a month, the filter screen is removed, and the dust can be removed by using a vacuum cleaner or a rag.
▪ HEPA filter ▪
This is the most important filter for empty nets, which removes more than 99% of 0.3-2.5 micron particles. Effectively block PM2.5, bacteria, allergens, and other harmful substances, so are careful when cleaning.
HEPA filters are not washable because they are usually made of polypropylene or other composite materials. Similar to paper, brushing with water can damage the filter structure.
You can use a vacuum cleaner to clean the dust, almost once a month. If you feel that it has become very dirty after using it for a long time, then it is best to change a new one, don’t feel bad about it.
▪ In addition to formaldehyde filters ▪
If it is activated carbon in addition to the formaldehyde filter, it is good to expose it directly under the sun. Activated carbon belongs to physical adsorption, and the formaldehyde adsorbed in it is released by the temperature rise.
Therefore, if it is not taken care of, the formaldehyde adsorbed in the winter will be released again in the summer, and secondary pollution will be formed.
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First, the water on the high floor is not clean Due to insufficient water supply pressure in the municipal pipe network, only 5-6 floors of water supply can be achieved. That is to say, the water supply above the sixth floor can only use the secondary water supply and pressure equipment to achieve the purpose of water supply. The secondary water supply, the pollution is more serious, the impurities are too much, it is not clean, and it is not suitable for long-term drinking. If you have water purification equipment, the water quality will be clean no matter how high the floor is.
Second, the inconvenience brought by the water dispenser Drinkers are used in general households, but there are three problems with drinking fountains: 1, the water dispenser should always change the water, trouble; 2, the water dispenser should be cleaned frequently, otherwise, it will easily breed bacteria; 3, the water dispenser must be kept energized all the year-round, power consumption. If you have household water purification equipment, you can solve the above three problems well.
Third, the safety risks of tap water If you have an electric kettle in your home, you will find that there are scales after burning a few times. Why? Tap water is too many impurities and is not clean.
If you wake up in the morning and brush your teeth with tap water, you will find that the tap water that you just opened will be a bit yellow or even pungent. Why? Tap water is too many impurities and is not clean.
If you are a tea lover, then the water you are sure to use is mineral water, purified water or filtered water. Why? Tap water is too many impurities and is not clean.
If you are a maintenance-conscious person, you must know that in addition to exercising more, focusing on sleep quality and nutrition, drinking water is also very important. You will definitely not drink tap water. Why? Tap water is too many impurities and not clean?
If there are elderly people and children in the family, it is not recommended to drink tap water for a long time, which is easy to cause stones and gastrointestinal diseases. Why? In addition to the poor stomach of the elderly and children, there is a lot of impurities in the tap water, not clean.
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As for the water purifier, it should have a history of more than ten years. As the Wanfeng brand, why has there been a product of water purifiers, but it has never been widely promoted to the market? This is due to various factors. of. People who have worked in chemical production or have studied chemistry carefully know that the surface of carbon particles has the function of adsorbing particles. Then the real principle of the water purifier is here. Many groups in the society boast magical water purifiers, and then they are desperately premium or participate in cheap gifts to entice consumers, a water purifier sells sky-high prices. As a brand development strategy, we absolutely cannot do such a thing. The water quality after the five-pole filtration of the water purifier is indeed very good and is the standard for achieving pure water. However, according to China’s national conditions, long-term drinking of pure water will greatly reduce the individual’s immunity, and there is no real help for health. Moreover, every ton of tap water can only produce one ton of purified water, and two tons are waste water, causing a large loss of water resources. If fake or inferior goods appear in the market or go through the streets, the products that are promoted by the assembly will probably be unqualified products, especially the quality of plastics, which may cause harm to the body. Water purifier products, because there are multi-channel sales links, there are also problems of overcapacity, the product design of each factory, business is not the same, the quality of after-sales accessories and accessories are a series of problems. Collecting the above factors, the Wanfeng brand’s water purifier has been in an obscure state. We believe that a house must be used for clean water in the true sense. After many years of improved testing of German technology, the following recommendations are recommended: 1. Use the method of entering the household water, only need to wash the filter element frequently, no need to replace the filter element, which greatly helps to extend the service life of household water heaters, faucets, triangle valves and showers. (The following figure)
2. Use the ultimate version of the Wanfeng water purifier (below)
Advantages comparison: 1. No motherboard controller. 2. No power requirements. 3. No pumping booster equipment. 4. No pressurized barrel. 5, ultimately will not produce any after-sales service needs. 6. The purified water quality meets the national standard for mineral water, and healthy particles are not lacking. 7, no waste water, will not cause the loss of water resources. 8. Installation and use of the original metal pipe will not cause secondary pollution to the water quality. 9. The water flow pressure is clear at a glance. 10, the amount of water is more than five times that of ordinary water purifiers. In summary, a rational choice of water purification equipment can really help healthy drinking water.
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Particulate matter (PM2.5) is an air pollutant that can severely affect health. Exposure to it causes throat and lung irritation, coughing, sneezing, runny nose and shortness of breath.PM10 may stick to your nose, PM7.0 particulate can enter into human’s throat, PM2.5 is able to breathe into lung which is very bad to health.
Benzene
Benzene is widely found in the air from emissions from burning gasoline, coal and oil. The multiply layer filters of Baren air purifiers removes benzine and other harmful substances from your home.Seven steps Baren’s air filtration through air purifiers effectively reomoves toxic chemicals in the air such as arsenic, asbestos, benzene, dioxin and several others.
Fomaldehyde
Many household appliances release formaldehyde such as unvented fuel-burning appliances, gas stoves or kerosene space heaters and insulating materials. Air purifier fights back formaldehyde.
Allergens
Allergens are the substances that cause allergic reaction.
Pollen
Pollen functions as allergens, affecting human immune system to elicit an allergic response. Baren air purifier filters out the pollen and other air pollutants, cleaning the air you breathe.
Olansi Air Purifier use true HEPA to fight with air pollution, have become a very popular addition to many modern homes, and there is little surprise why. These items are often very reasonably priced and come in a range of different and attractive designs, not to mentioned that they have many purported advantages.
One of the first benefits of an olansi air purifier is that this can help remove allergens from the air, which is why many people choose to use this kind of product during spring and summer. Allergens such as pollen can get into the home at this time of year, which can exacerbate the suffering of people with seasonal allergies.
Furthermore, those with dust or mould allergies can also find these products helpful, as an air purifier will also help reduce the levels of these allergens in the home too. The reason for this is that a purifier will draw in the air and filter out all these potentially harmful contaminants, making the air far easier to breathe within the home.
Best regards, Kerry Zhang oversea department manager Olansi Healthcare Co.,Ltd. (GuangZhou Olans Water Treatment Equipments Co.,Ltd) Mob./Whatsapp/wechat: +86 18898531824 Email: kerry@olansiglobal.com / airpurifiersfactory@vip.163.com www.olansiglobal.com
Air purifier conscience guide, so buy, no longer have to worry about being pitted
Under the smog, life is important. The smog of earning money, the smog of the official, the ordinary people, know the smog, anti-smog.
Americans love to sterilize, Japanese people are afraid of pollen, and Chinese hate PM2.5. In the special industry of air purification, we are the only country in the world that is seriously polluted by smog and has the strength and willingness to purchasetop rated room air purifiers. Hey, so, in the face of thousands of top rated large room air purifier on the market, from hundreds of oceans to tens of thousands of oceans, how can you choose not to be deceived?
We purchase air purifiers, mainly for indoor pollutants. Simply put, indoor air pollutants fall into three categories:
1 Particulate matter | such as inhalable particulate matter (PM10), smaller particles can inhale PM2.5 in the lungs, pollen, pets or body exfoliation;
2 Volatile Organic Compounds (VOC) | including various odors, formaldehyde or toluene pollution caused by decoration;
3 Microorganisms | Mainly viruses and bacteria.
The principle of removing indoor air pollutants
Mechanical + electrostatic + water filter
Mechanical type, that is, “filtration”, high air volume fan + filter screen, can intercept some particles and microorganisms, large particles “adsorbed on the filter screen” and adsorbed, small particles are absorbed by the electrostatic force or gravity of the filter fiber, Therefore, the filter screen is often a layered structure, and one layer cannot be blocked.
The most popular air purifiers on the market, with the most mature technologies and products, are mechanical filter purifiers. Electrostatic and water filtration purifiers, although there is no need to replace the filter, but the filtration efficiency is very general, it will bring secondary pollution such as ozone and chlorine, and the problem of microbial growth, so it will not be described.
HEPA high efficiency filter
(High-Efficiency Particulate Air Filter)
Referred to as HEPA
Various countries have different standards for high-efficiency filters, and European HEPA grades (EN 1822) are often mentioned. In the latest EN 1822:2009 standard, H13 grades or higher can be called HEPA (so strictly used) The H10-H12 purifier can no longer be called HEPA).
From H11 (filtration efficiency >98%) to H13 (filtration efficiency >99.97%), with the same CADR value (described below for CADR), the purifier can be faster with the purifier of the H13 filter. Lower, while the H11 filter takes longer. The higher the level of HEPA, the better. Of course, the higher the level, the more expensive the price.
Some air purifiers add a lower filter front filter to the HEPA to filter out larger particles such as hair, which improves HEPA efficiency and longevity, as well as cost control.
HEPA is the core component of the purifier and needs to be replaced at regular intervals.
Activated carbon or zeolite
Both HEPA and pre-filters filter particulate matter and some microbes, and another important indoor air pollutant, volatile organic compounds (VOCs) such as formaldehyde. Toluene requires an additional filter to remove. The most widely used is activated carbon filter. Activated carbon absorbs VOC through its huge surface area, removing formaldehyde and various odors. The same is true of the basic principle of zeolites.
About air purifier
The most important CADR and CCM
1 CADR (Clean Air Delivery Rate), clean air output ratio
CADR is the ratio of the air purifier output clean air obtained by the American Association of Home Appliance Manufacturers (AHAM) according to strict test standards. It is generally expressed by the area ratio time (domestic use m3/h), that is, each How many volumes of air are purified in an hour. The higher the CADR value, the higher the purification efficiency.
Simply put, CADR/10 (poor air quality can be increased to 15) can be used as a reference for purifying the area. For example, the nominal CADR value is 750m3/h purifier, the applicable purification area is about 750/10=75m2, if the purification requirement is higher, it is 750/15=50m2.
International standards require that the purifier must change the air of the area to be used more than 5 times per hour, so each purifier will mark its applicable area, such as 20m2, the height of the floor is 3m, which is 60m3, which requires the purifier. The air volume needs to be above 300m3/h.
As the name implies, CCM stands for the endurance of the purifier. The new national standard divides the CCM value into 1~4 grades (the higher the number is, the higher the level), corresponding to different pollutants, the particulate matter uses the P1~P4 standard, and the formaldehyde uses the F1~F4 standard.
The CCM value determines that the number of days the screen can be used can be determined under conditions where the purifier, room area, and contaminant concentration are known. However, because the national standard threshold is low, some better purifiers will be marked as “Super P4/F4” or “Several times P4/F4”.
Air purification process
The indoor environment in which we live is always in gas exchange with the outside world. Indoor pollutants, such as formaldehyde that has just been renovated, particulate matter produced by smoking, and odors of other objects, overall, indoor particulate matter or pollutants, have been in a state of dynamic balance.
The function of the air purifier is to control the particulate matter or pollutants in the dynamic equilibrium state to a lower concentration range through the combination of “high air volume + high filtration efficiency”. In order to achieve a better purification effect, it is necessary to check the air leakage in the room. If the air leakage is very serious, even the best purifier, the high CADR and CCM are also white.
The only solution is the fresh air system. By continuously changing the indoor and outdoor air, the fresh air system always maintains the indoor air pressure higher than the outdoor, thus preventing the outdoor air from directly entering the room. The Yang Lao Wet House installed a fresh air system before the renovation, and it has its own PM2.5 filter core. On the basis of the ordinary fresh air pumping air, the purified air is sent into the room.
From this point of view, the air purifier can only temporarily purify the indoor air, does not have the ventilation function, and the purification area is limited, and most fresh air systems must be installed before the house is renovated, so the air purifier can be said to be unmounted. A compromise between the family of the fresh air system.
Air purifier noise
Noise is an inevitable problem for all filter purifiers. The greater the air volume, the greater the noise. Even if manufacturers use a variety of sound-absorbing or sound-proof methods, once the air purifier is turned on, including the fresh air system, it will still add a sinuous background sound to the home.
The noise of the purifier for a long time to work stably, as well as the serious pollution of the air. The noise during maximum power operation is a factor to be considered when purchasing. Different types of purifier manufacturers will basically indicate the decibel number (dB) during operation. Reference.
Additional features / smart services
In today’s smart age, many home appliances add one or more additional features to the product, such as APP control, smart detection, mute or sleep mode, etc., such as smart detection, you should pay attention to the real-time monitoring of the air quality near the machine. , or the entire room, and whether the air purification effect in silent or sleep mode is guaranteed.
Sheep and old wet to say separately is after-sales, this is a problem to buy any home appliances, of course, it is still related to the manufacturer, it is recommended to choose the mainstream model of the mainstream brand as much as possible, saving the factory because of the niche and abandoned it into three.
Of course, the air inlet and outlet of the purifier, the placement and land occupation, the ease of movement, and the level of the color are all important factors that influence your final decision.
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Do you need an air purifier if the air quality is good?
The quality of air quality reflects the degree of air pollution, which is judged by the concentration of pollutants in the air. Air pollutants include PM2.5 particulate pollutants, harmful viruses such as bacterial viruses, and chemical harmful gases such as formaldehyde and benzene. Under the smog siege, the best home air purifier for cigarette smoke also became a hot item in 2014.
Some people think that top rated room air purifiers are not needed in areas with good air quality, such as Hainan. This is actually a wrong understanding. In fact, in foreign countries, even in economically developed regions such as Europe, the United States, Japan, and South Korea, because people have a strong sense of health, even if the air quality is very good, people generally use air purifiers to remove indoor air quality. It is precisely because the outdoor air quality is good, and people have long hours of indoor activities, indoor dust, pollen, second-hand smoke, animal dander, human body odor, and other pollution, so the air purifier is more needed.
Therefore, the normal situation should be that light air purifiers can be used in areas with good air quality. In areas with poor air quality and complex pollutants, heavy-duty air purifiers can be applied to deal with severe and complex pollution environments.
The bad air environment, the harm to the human body is self-evident, the home is placed in an air purifier, if the conditions can choose a negative ion air purifier to clean the indoor air is also very useful to reduce pollution The harm of air to the human body.
Air purifiers are not new in the market, large, small, quirky, intelligent… can be described as a variety of flowers. They may have a variety of advantages, but these air purifiers are only air purifiers. The single-function hardware can no longer be called smart. The reason why intelligence is called intelligence is its user-friendly design, convenient use process, worry-free automation, and multi-functional convenience.
Knew, the newest plaything community in the country, combined with the leading industrial design brand Yushi Design, and the professional air purification system engineering total solution provider Jiaduo Net Technology, launched this in September 2014 – not just The “U-Shi super-smart air purifier” that improves the quality of breathing and is more effective in improving the living environment.
Ushi mobile wireless charging air purifier can be used indoors and in the car to improve the air quality of personal space. You can put it in the car to purify the interior of the car, or you can put it on the desktop and have the wireless charging function of the phone. In the case of standby, there will be an air quality sensing system, which automatically adjusts the air volume according to the feedback information of the sensor, and truly eliminates worry.
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A lot of things can be judged by logic, including buying an air purifier and hearing the details. (But I can’t talk about logic in anything. I have been telling the logic to be killed by my wife several times because of all the troubles.)
My first best home air purifier for the smoke was bought in 2004. Of course, it must be a Panasonic. What do I mean by that? ——Air purifier is not a smog derivative, not a PM2.5 filter. In 2004, the Chinese did not know what PM2.5 was; Air purifiers, as the name implies, are machines that purify indoor air, and indoor air pollution sources are far more than PM2.5. Japan’s PM2.5 has an average annual value of 10, but we are familiar with Panasonic, Daikin, Toshiba, Mitsubishi, and Hitachi to produce air purifiers. One of the standards in Japanese hotels is the best home air purifier for cigarette smoke. So, first of all, we should have a correct understanding of the air purifier.
However, after all, it is China, and China is a smashing China. The harm of PM2.5 does exist in the field. Therefore, there is nothing wrong with the purchase of air purifiers. Focus on PM2.5 only, because even in Beijing, the annual average PM2.5 concentration is around 80, and the air quality is up to 190 days. We can also play the role of air purifier in the absence of smog. The value of this money is spent!
So, how can we buy a cost-effective air purifier?
1, in the choice of brand, try to choose those familiar brands. There is nothing special about the basic functions of air purifiers, so don’t trust the so-called “professional” brands that don’t know which country to pop up. What is a professional? At best, it’s a special one. It was Matsushita. Matsushita began producing air purifiers in 1962; at that time, the CEO doors of these “professional” brands were not yet born! They are professionally bragging skills, such as the so-called big-name Blueair, you see how people blow the cows to the sky, I will give you a small example.
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