Why do we recommend using negative ion air purifier but ozone generator?
Negative ion air purifier works by electrostatically charge negative ions internally and disperse them into the air. Like a magnet, the released negative ions will merge with positive ions particle in a room. This includes dust mites, mold/ mildew, pollen, pet dander, bacteria, and viruses. The bonded ions will fall due to the increased weight leaving the air free from any contaminants.
A negative ion is an oxygen atom with an extra electron. It is ODOURLESS and vital to health.
The ozone generators advocated on the market are unsafe. why?
Ozone is a highly reactive chemical. Because of its ability to react with the molecules in the air, it has an uncanny ability to remove strong odors and pollutants. But ozone doesn’t magically lose its reactive abilities when inhaled. On the contrary, when ozone is inhaled by humans, it remains just as reactive. This reactive nature is what makes ozone dangerous to humans and other forms of life.
When inhaled, ozone can create a reaction in the lungs. Even at low levels, this can create a wide range of health problems, particularly with the lungs. They can inflame and damage airways and make the lungs more susceptible to infection.
First, ozone can be a contributor to chest pain and coughing. It can cause shortness of breath, and irritation to the windpipes. These problems can inflict anyone who breathes in ozone contaminants, but they are especially potent for people with respiratory conditions such as asthma and allergies. Ozone makes it more difficult to breathe deeply, causing someone to struggle with getting enough pure oxygen for normal activity and daily function.
Ozone can also cause issues with the throat. This can come in the form of mild to serious coughing and, depending on the exposure levels and overall health of the patient, can disrupt normal daily functions.
On the contrary, more and more proofs prove that negative ions are beneficial to the body.
Negative ions breathed in high concentrations for prolonged periods of time give us energy, vitality and most importantly fight the negative effects of positive ions. We want to be around negative ions as much as possible. Negative ions are extremely important to having a healthy, disease free body.
***Effects of Negative ions***
Decreased respiratory rate
Decreased basal metabolic rate
Decreased blood pressure
Produced a feeling of well being
Increased vital capacity
Decreased skin temperature
Acceleration of the conversion of succinate to fumerate
Stimulation of cytochrome
Decreased eosinophilia and lymphocyte count
Increased CO2 combing power of plasma
Decreased blood sedimentation rate
Decreased muscle chronaxie
Increased ciliary activity
Increased frequency of mitosis
Increased resistance to infection
Therefore, please choose our negative ion air purifier to maintain a healthy environment while sterilizing and disinfecting.
Choose Olansi, choose a better future.
If you want to know more details, please contact us. Let us help you open your market. Mob/Whatsapp: +86 13922346046(Helen) WeChat:13922346046 Email: firstname.lastname@example.org
Olansi Health Industry Science and Technology Park project is located in Nansha, Guangzhou. It has a well-developed transportation network and complete supporting facilities. New factory buildings and office buildings, including R & D centers, production centers, sales centers, audiovisual centers, storage centers, leisure centers, and other functional areas, can meet the needs of Olansi employees in production, business, living, leisure, entertainment, cultural and other needs.
Olansi Health Industrial Science and Technology Park will introduce more advanced international production equipment, introduce more international talents, and introduce more and more advanced concepts. With the business district, ten-level dust-free production workshops, and international advanced production equipment, Excellent conditions such as living and working facilities, to create a more standardized and standardized health industry science and technology park.
1. The first beauty instrument product R & D and production and warehouse building has been renovated and is ready to be relocated by the end of this year. 2. The second and third buildings, air purifiers, water purifiers, and hydrogen-rich water have also been completed. All the factories have a total area of 60,000 square meters, integrating R & D, production and sales. Can produce at least 10,000 units per day. 3. In terms of software and hardware, we are ready to provide better services to OEM / ODM customers of medium and large brands.
In 2020, we will carry out deeper cooperation with all customers with a new look.
‘Why do you need an air purifier?’ I think we should not ask this question. Instead, we should ask ourselves ‘Why don’t you use an air purifier?’ Many optimists will feel that they have or can’t, and they are used to it anyway. The quality has gone, and nothing has happened.
For this part of the optimist, I feel very good, must be optimistic, otherwise it can still be done? After all, life has a lot of annoying things. Therefore, today’s article is for those who value life quality, pay attention to physical health and have a pursuit.
Air pollution, this has long been a commonplace thing, and it is something we experience personally. The sky is no longer blue, the water is no longer clear, these are all visible.
Why do you need an air purifier?
Many people now believe that smog, PM2.5, automobile exhaust gas and other pollution sources are mainly concentrated outdoors. As long as the outdoor activities are reduced and indoors are kept indoors, they can protect their own health. However, there is really no problem indoors?
In the past two years, smog weather has continued to increase. In many cities, PM2.5 values have frequently exploded, and air quality is often moderate or severely polluted. However, the rare sunny weather does not allow people to stay away from the dangers of air pollution. More than 300 kinds of harmful gases and pollutants such as formaldehyde, benzene and ammonia in the indoor air cause the indoor air pollution level to be 50 times that of the outdoor!
However, the air purifier is not a panacea. It is a product used indoors. It improves the indoor air and has little to do with whether it is foggy outdoors. The only connection is that the air purifier is your solution because of the smog outside and the inability to breathe through the window.
What problem has the air purifier solved?
First of all, indoor pollution can be roughly divided into two categories: excessive particulate matter and volatile organic compounds exceeding the standard.
Among them, there are many kinds of particulate matter, such as dust particles brought in from outside, as well as PM 2.5, sensitized pollen, bacteria, viruses, swarf keratin, pets and so on.
If the particles are inhaled too much and deposited in the body, it may cause respiratory diseases and even increase the risk of lung cancer and heart disease.
Bacteria and viruses can cause skin irritation and illness.
Volatile organics, also known as VOCs, are mainly derived from combustion products such as coal and natural gas, smoking, construction and decorative materials, furniture, household appliances, detergents, and the body’s own emissions, as well as paints used in decoration. , coatings and adhesives.
The hazard of VOC is obvious. When the VOC concentration in the room exceeds the standard, people will feel nausea and headache. If it is serious, it will be comatose because it will damage the liver, kidney, brain and nervous system of human beings.
What conditions should the air purifier have?
As mentioned above, indoor pollution is mainly caused by excessive particulate matter and volatile organic compounds, so air purifiers use different tools to destroy them one by one.
First, if you want to destroy particulate matter, you will need a HEPA filter. HEPA is the abbreviation of High Efficiency Particle Air, which means ‘high efficiency air filter’. It is used to adsorb and filter fine particles such as PM2.5.
If you are interested in this, please contact us for more products and preferential prices Helen: +86 13922346046 email@example.com https://www.olansiglobal.com
Olansi is a prime company and supplier of surroundings purifiers
Olansi was founded in year with the pious goal of providing a swap for Chinese as effectively as citizens of additional countries of breathing clean air that was entirely free from toxic toxins. More often than certainly not, the environment that people inhale and exhale inside their homes or even offices or other inside locations happens to get more polluted in evaluation to the air distributing outdoors. Since the inside living or working locations are usually demarcated and encapsulated rather than unbounded as the particular outdoor zones, these indoor premises usually tend to be able to trap high proportions involving mites, pollens, spores, plus other microscopic particles of which cause a range associated with health problems the popular ones being asthma in addition to allergic disorders. To be able to snare these unhealthy and undetectable particles floating up within homes or offices, some sort of home air purifier arrives in handy.
Olansi is definitely a prime manufacturer and even supplier of home surroundings cleaners and air cleansing agents
Guangzhou Olansi Air Cleaner Manufacturing is actually a recognized Far east concern which has been earnestly involved in manufacturing an array of atmosphere purifiers since 3rd Drive 2009 in its surroundings purifier factory located within GaoSha industrial zone within Guangzhou city. You can actually extensive range of products consist of air cleaners, air dust particles purifiers, air allergy devices, home air cleaners (for asthma), air purifiers for youngsters, air molds purifiers, surroundings odors purifiers, air cleaners for pets, air PM HOURS (particulate matter) 2. a few purifiers, ionizer air devices, HEPA home air cleansing agents, and so on. Given that the establishment from typically the production unit, Olansi have been able to step upward production without compromising in quality. 3 years following it is foundation, the organization had already been turning out 1, thirty, 000 units of cleaners.
Olansi after entrenching the business within the nation started exploring beyond the particular national borders. The ministry of foreign trade presented the consent to the particular manufacturer to export their wares to South Most of asia, United states, South America, The european countries, Africa, and Southeast Asian countries. In order to acquire the confidence of their overseas clientele, the organization established a R&D middle that concentrated on developing an innovative line regarding China air purifier. From the same time, Olansi also focused on approaching up with world-class normal water purifiers. So as to be able to bring about a better regularity in the operational method comprising the different periods from the manufacturing method, the firm took the particular decision of creating a new suite of ERP (enterprise resource planning) modules inside 2014. The R& G center was further renovated in 2015 with some sort of view to enhance the particular efficiency of the whole product line.
Olansi is a new Chinese-based concern that provides been producing and disbursing a diverse range involving air purifiers considering that the final 7 years. For even more details, much more their particular website.
Best regards, Kerry Zhang oversea department manager Olansi Healthcare Co.,Ltd. (GuangZhou Olans Water Treatment Equipments Co.,Ltd) Mob./Whatsapp/wechat: +86 18898531824 Email: firstname.lastname@example.org / email@example.com www.olansiglobal.com
Air purifier filter cleaning and maintenance guide, teach you how to save purification costs
The use of an air purifier is very simple, and the filter is installed and plugged in and used. But if you say it is not that simple. Perhaps you haven’t read the instructions yet, or the blind spots in some air purifiers have not been noticed. Several suggestions on how to use the air purifier correctly are summarized as follows in the form of question and answer, hoping to help everyone!
1. How to install the air purifier filter
Different models of air purifier filters are installed differently. However, the Xiaobian survey found that most of the air purifier filters on the market are packaged in waterproof bags and placed in the purifier filter drawer, as is the Stewart air purifier. Consumers only need to take out the filter and unpack the waterproof bag in the original order, which is simple and not necessary.
2, the position of the air purifier
Do not place the air purifier in the aisle, it should be placed in a room where family activities are concentrated. The air purifier needs a certain distance from the wall surface, and the distance of 30 cm is good so that the air inlet and the air outlet have better air circulation.
3. How long is the air purifier open?
In order to keep the indoor air clean, try to open it 24 hours, especially in the house that has just been renovated, the amount of formaldehyde volatilization is large. The power consumption of mainstream air purifier products generally does not exceed 70W, which is still very energy-saving. It is recommended to continue to use it for a long time.
4. Can a smoker play ash at the air inlet of the air purifier?
Some people have tested the purifying effect of the air purifier and directly shot the soot to the purifier, which is wrong. Even if the purifier has strong suction to absorb the soot, it is a burden on the filter element, and excessive suction of the dust causes the filter to have a reduced service life.
5, the air purifier air outlet as a wind tube
Although the purifier air outlet releases clean air, the purifier is so large that its air inlet is also close to the air outlet. Within 10-20 cm of the purifier, it is often the most polluted place.
6. Does the air purifier use the window or close the window?
In the event of continuous air pollution, the window should be closed first, and the door should be opened as little as possible to create a relatively closed space. In order to prevent no fresh air in the room, you can open the window intermittently or place some green plants indoors to absorb carbon dioxide, release oxygen and water, and adjust the indoor air quality.
7. Are the humidifier and air purifier used together?
When the weather is dry or the air conditioner is turned on, the indoor air will be very dry, so many consumers like to buy a humidifier or a humidifying air purifier. In fact, when the humidifier is used together with the purifier, the water mist will interfere with the air quality detector of the purifier. In addition, the use of the humidifier is not correct, it not only can not purify the air but will increase the possibility of respiratory diseases.
8. How often does the air purifier filter change?
Filter-type air purifier, some filter elements can not be cleaned to achieve repeated use, and the service life is generally about six months. Once the filter adsorption area reaches saturation, the machine work efficiency will decrease, and even the risk of secondary pollution, so consumption The filter element should be replaced in time according to the degree of indoor pollution and the product life cycle.
For fear of forgetting to replace the filter element, you can choose an air purifier with a filter reminder function.
9, the preservation of the air purifier
When the air quality is good, you don’t need to go to the purifier. You should remove the purifier filter and clean it. Place it in a cool, ventilated place with the air purifier.
Air Cleaner OEM/ODM Foundry Industry, Olansi with 10 year history
Surroundings Purifier OEM/ODM Market Guide
In the international atmosphere purifier market, OEM/ODM is probably the most important brand cohesiveness methods. By entrusting producers with international design styles and advanced technology, the particular brand can effectively decrease production costs and target on developing new goods.
Therefore, which of the particular Chinese home air cleaner OEM/ODM companies are more powerful? Olansi has an absolute edge in the air cleanser OEM/ODM foundry industry!
Buy best air purifier available in india 2019 from top 10 best air purifiers manufacturers in delhi
A single advantage
In past times 10 many years, Ausland focused on typically the R&D, design, manufacturing, in addition to sales of air devices, water purifiers, and hydrogen-rich aquatic products. Has the wealth of market encounter in the industry, throughout the product’s price could have a better benefit.
Olansi includes a mature design team, best product data, adopting the most recent foreign design styles, and even making the products display distinctive post-modern styles. Typically the sense of labeling will be very obvious, and this is easier for customers to be impressed. Fresh product development volume, item manufacturing volume, product product sales volume, and product after-sales evaluation are all within the leading position in the
Olansi has three R&D facilities for scientific research programs: the Environmental Research Company of Sun Yat-sen College, the Material Research Company of South China College or university of Technology, and the particular Auslan Evaluation Center. Together with abundant technical reserves, the particular company has created more as compared to 10 new product traces annually, and has cumulatively sold 5. 5 , 000, 000 air purifiers, water devices and hydrogen-rich aquatic goods.
if you want to know more Olansi factory, pls check our website and contact
Stopping the flu epidemic, use the Olansi air purifier
The flu is influenza, which is an acute respiratory infection that occurs after people get infected with the flu virus. The reason why the flu is fatal
is not the flu itself, but its complications, such as pneumonia, gastrointestinal tract, heart damage, nervous system damage and so on. Therefore, in
addition to eliminating the flu virus, the prevention of influenza should also eliminate the virulence factors that cause complications. In recent years,
the number of elderly people in Hong Kong has been increasing and such people are more susceptible to influenza and complications. As a result, the elderly
in the Hong Kong flu epidemic have suffered from serious and fatal cases.
The main route of transmission of influenza virus is airborne, and the virulence factors of complications are also abundant in the air. Coupled with the hot
summer, people like to stay indoors for a long time. Therefore, if the indoor air can be disinfected, it will greatly reduce the incidence of influenza and
How to effectively disinfect indoor air? An air purifier with disinfection is a good choice. And when it comes to this, I have to mention the olansi Air Purifier.
Olansi air purifier has the effect of purifying indoor air and effectively eliminating bacteria in the indoor space. The antibacterial rate against Staphylococcus
aureus and Escherichia coli is over 99.99%. In addition, the removal rate of 0.1 μm particles (influenza virus size larger than 0.1 μm, belonging to the dust
particle range) can also reach 99%.
There are seven purification structures (HEPA filter layer, HEPA filter (using imported 3M filter), activated carbon filter layer, cold catalyst coating, negative ion generator), in which cold catalyst coating and HEPA filter layer purify indoor air. And the role of inhibition, sterilization.
The sterilization technology is a unique patented technology of HOYI Hongyi, which can inhibit indoor mold and Staphylococcus aureus,
and make the indoor air more clean and hygienic, thus reducing the incidence of complications such as pneumonia.choice Olansi air purifier
The Purification Efficiency (CADR) value has three indicators: 1, sterilization efficiency 2, volatile organic compounds (VOC), usually with toluene as a test source 3, solid particles, also known as dust (Particle), the country usually uses cigarettes to simulate, so it is also known as smoke Since the general air purifier has a very obvious effect on the removal of coarse dust, and the effect of removing bacteria and removing volatile organic compounds and formaldehyde is not as good as dust, many merchants only indicate the CADR of the dust.
Three steps to teach you to choose the right air purifier
The smoggy weather that has occurred frequently in recent years has driven the air purifier industry. Although the Chinese air purifier market has not developed for a long time, there have been several generations of products. From activated carbon adsorption to ozone sterilization, to the latest PHI, the technical principles are varied and the purification effects are different, so you will be confused when choosing a purifier. How do we choose the purifier that suits us? Xiaobian teaches you three steps today to let you choose the right air purifier for you.
The first step: understand indoor air pollution and tap your own needs.
First, we need to understand what we are buying for an air purifier. Is it just purifying PM2.5? In fact, in addition to PM2.5, there are other pollutants that threaten human health indoors, so let Xiaobian give you a popular science.
Indoor air pollution is mainly divided into three categories:
1. Chemical pollutants: mainly refers to volatile toxic gases, such as formaldehyde, benzene, TVOC and other decoration pollution that we are familiar with. People have a common misunderstanding of such pollutants: “The new decoration is very serious.” This problem does not exist in the seven-year-old house.” In fact, contaminated releases such as formaldehyde, benzene, and TVOC can last up to 3-15 years. Long-term exposure to such indoor air pollution sources, even low concentrations can cause chronic respiratory diseases, female menstrual disorders, pregnancy syndrome, causing neonatal physical decline, chromosomal abnormalities, and even nasopharyngeal cancer. The high concentration of pollution sources will cause toxicity to the nervous system, immune system, liver, etc., and even teratogenic and carcinogenic effects.
2, physical state particles: typically represents PM2.5 respirable particulate matter. The smaller the particle size of inhalable particles, the greater the harm to the human body. Respirable particles with a particle size of fewer than 10 microns can enter the human respiratory tract. Less than 2.5 microns can be deposited in the lungs, and harmful substances can enter the blood through the alveoli. Statistics from the European Union show that PM2.5 causes 386,000 deaths per year and reduces people’s life expectancy by 8.6 months. PM2.5 can also be a carrier of viruses and bacteria, contributing to the spread of respiratory infections.
3. Biological pollutants: mainly refers to active harmful microorganisms floating in indoor air such as bacteria, viruses, molds, and spores. Size range: 0.01 to 10 microns. Bacteria can cause various diseases, which can cause death in severe cases. For example, the mortality rate of Legionella pneumophila is 15%, and the mortality rate of E. coli in Germany is over 5%. The virus is the initiator of various epidemic diseases and is highly contagious through airborne transmission. The SARS mortality rate was 11%, and the A1 H1N1 mortality rate was 6.77%. Mold not only brings unpleasant odor, but is also a major cause of asthma and allergic diseases such as rhinitis, but it is ignored by most people.
Knowing these three pollutants, everyone should have found the one that they are most worried about. Like Xiaobian, a family of old people, pregnant women, and a small family, three types of pollutants are the focus of my concern.
Step 2: Understand the advantages and disadvantages of purification technology, choose the one that suits you best.
At present, the name of the air purifier technology on the market is varied. In fact, it is basically the following categories:
HEPA mesh filtration technology: effective for biological pollutants and physical particles. The fan is used to compress the air through the filter to trap contaminants such as particulate matter and microorganisms on the filter. It only acts as a trap and cannot be removed or inactivated at all. Long-term accumulation may become a larger source of pollution. It is a passive treatment method. If the air cannot pass through the equipment, the interception effect will not be achieved. In order to allow the air to pass through the filter in a large amount, it is often necessary to use a high-powered fan with a large noise to perform the suction treatment.
PHI active purification technology: very effective for chemical pollutants (volatile harmful gases), biological pollutants, physical particles. PHI purification technology produces a variety of air purification factors under the action and control of broad-spectrum ultraviolet light and various rare metal catalysts. It actively mixes with harmful pollutants in indoor air through air diffusion and air circulation to purify indoor air. It can kill more than 90% of bacteria, viruses, and molds in the air for a short time, and can quickly decompose chemical volatile gases and odors such as formaldehyde and benzene. At the same time, it can effectively eliminate inhalable particles in the air. It is truly green and noise-free. Especially under the premise of not affecting the human body and the environment, it can improve the self-purification ability of the air itself and remove air pollutants in a dynamic environment.
Activated carbon adsorption: It is effective for odor and chemical pollutants (volatile harmful gases). Using coal, shell, wood, petroleum residue and other materials with high carbon content as raw materials, after high-temperature activation treatment, microporous activated carbon powder is formed and then adhered to the filter network with a polymer binder. Activated carbon fiber mesh. It is easy to saturate, and the adsorbed pollutants will have the potential to re-evaporate into the air when the ambient temperature rises.
Electrostatic adsorption: It is effective for biological pollutants and physical particles. Let the air pass through the high-pressure ionization zone, so that the particles in the air carry a positive charge, and are adsorbed on the negatively charged dust collecting plate when passing through the dust collecting chamber. High-voltage disconnection is easy to produce carcinogens, and it is also a passive treatment method. If the dust collector is not cleaned in time, it may become a new source of pollution.
Photocatalyst: It is effective for biological pollutants and chemical pollutants (volatile harmful gases). Using the photocatalytic properties of special materials, the light energy is converted into strong oxidizing chemical energy, and the pollutants in the air are removed by the oxidation of the strongly oxidized particles. Due to the immature production process, the industrial-scale application has not been realized, and the material cost is high.
UV: Effective for biological contaminants. A tube group consisting of an ultraviolet Clamp generates ultraviolet light having a wavelength of 254 nm to illuminate the air. After receiving sufficient UV dose, the internal structure of the microbial DNA is destroyed, chemical bonds are broken and cannot be replicated, thereby killing the microorganisms. Direct irradiation is harmful to the environment and the human body, and cannot meet the timely sterilization protection in a human environment.
Negative ions: Effective for physical particles. The free electrons generated by the ionization of air molecules under the action of high pressure or strong rays are mostly obtained by oxygen to form negative ions. Negative ions can adsorb particles in the air to form larger particle clusters, and settle down when the air cannot hold the pellets, so as to purify the air. Due to the poor stability and short service life of the negative ion generator, the actual application effect is not ideal.
In addition to the PHI purification technology, there is no purification technology that can target all pollution sources at the same time. Therefore, most air purifiers on the market will use several technologies at the same time. Although this can barely target all pollution sources, it is bound to use high energy consumption. High noise, etc. as a price.
When we choose an air purifier, be sure to ask the salesperson that this machine uses the purification technology to determine if it can target the source of concern.
The third step: understand the potential cost, there is a clear account in mind
At present, the price of the machine on the market is very large. Except for the PHI technology, most air purifiers need to replace the consumables regularly, which leads us to periodically purchase new expenses to purchase consumables during the later period of use. According to the current average domestic decoration level and outdoor air, it is generally recommended to replace the consumables in two or three months (don’t listen to the salesperson saying that one year of replacement, it may be recommended for use in Switzerland.).
We assume that we are purchasing a purifier of about 5,000 yuan. The cost of replacing consumables every three months is 600 yuan, then the cost of the first year is 8,000 yuan, and the annual investment is 2,400 yuan (not considering the electricity bill). If you use 7 years, then our total investment in this machine is about 22,400 yuan.
For a purifier that uses PHI purification technology that does not require late input consumables, we need to know how long it can last. Take An Anjie air purifier as an example. It uses PHI purification technology for 25,000 hours. We can calculate it for 10 hours according to the time of 10 hours a day. In this case, the price of the machine of 17999 yuan seems to be acceptable.
When choosing an air purifier, we pass these three steps, Xiaobian believes that you can choose the one that suits you best.
From the horizontal evaluation of air purifiers in 2013, we completed the industry’s first new national standard horizontal evaluation by 2015. We have evaluated more than 300 air purifiers in these three years.
Reasons for abandoning the 2016 Air Purifier Helping:
1. The air purifier industry has gradually matured, the products have different classifications, and there are different groups of people. We can only create a ranking of 123 for a group of people, which is not entirely reasonable. 2. The new national standard for air purifiers has been very clear and has clear guiding significance for users. If the content we create cannot exceed the new national standard within the scope of the test, then it will also lose its meaning. However, on the question of how to purchase an air purifier, many people do not know how to choose themselves.
Helping users to purchase is a responsibility for the media industry and the media. So we did something different this year: live video! To introduce the purchase technique of the air purifier in detail.
Hug Selena Gomez
We select 11 excellent air purifier products, the price covers 1298 yuan to 10800 yuan, the product types include box, tower and no consumables three types of air purifiers. Here, we will make a simple finishing of this live content.
CADR represents the purification performance of the air purifier. The larger the value, the faster the purification rate. Applicable area: 0.12*CADR
CCM represents the cumulative amount of purification, which is the life of the filter.
Interpretation: CADR and CCM both contain two data of particulate matter (haze) and formaldehyde (decoration pollution), while CADR is measured under the maximum wind speed gear.
How do we understand these two data? The larger the CADR of the particulate matter, the larger the applicable area, and the better the purification speed; Formaldehyde CADR, the larger the value, the faster the purification rate. However, the concentration of formaldehyde in the home environment is not high, and the purification of formaldehyde should pay more attention to CCM; The maximum grade of particulate matter CCM is P4, and the maximum grade of formaldehyde CCM is F4, which we think is not enough to compare products. If you can consult the store customer service, check the percentage of P4 and F4 that are equal to the initial value. For example, the same as the P4 grade, the product with an initial value of 90% is better than the product with an initial value of 70%.