How terrible is indoor air pollution? Air purifiers are the only solution

At present, common indoor pollutants include the following: formaldehyde, mainly from wood-based panels, wooden furniture, etc. Then there is carbon monoxide, which is produced by cooking. And there are mites in the air. The kitchen space is relatively closed, so it is generally the most polluted air. There can be mold in the bathroom, which is a major problem in the bathroom. In fact, everyone thinks of buying an air purifier and putting it at home for the first time, but the right air purifier must be selected to effectively protect the respiratory health of the family.

A11, an air sterilizer launched by Olansi, has the functions of Air purification + oxyhydrogen atomization + intelligent humidification + disinfection atomization, which can effectively remove fine particles in the air for a long time, including PM2.5, harmful gases, bacteria and viruses, etc. microorganism. In sleep mode, the noise is lower than 30dB, and the ultra-quiet operation brings you an extraordinary new clean experience.

In terms of appearance, the overall shape of Air Sterilizer A11 is a fashionable and versatile square column shape, with an 8L large-capacity water tank, saying goodbye to frequent water refills. In addition, the color atmosphere light is also used in the structure. When the sterilizer is short of water, the product will light up red.

In fact, indoor air pollution is not terrible, as long as you choose an effective air purifier, you can solve these problems. Air Sterilize A11, fast and durable purification, large applicable area, energy saving and environmental protection. At the same time, it is also an air purifier of international quality, and its quality and safety are trustworthy. Continue to bring fresh and healthy air to users, and can effectively purify indoor formaldehyde and other harmful substances.

Introduction of Air Sterilizer A11


Ten patent technologies

1.Super high humidifying force

2.Oxyhydrogen atomization mode

3.Disinfection atomization mode

4.Intelligent humidification mode

5.Dazzling ambient light

6.Water shortage reminder

7.Temperature and humidity digital display

8.Large-capacity water tank

9.Touch operation panel

10.Stylish versatile look

Four Modes

1.Oxyhydrogen Atomization

2.Disinfection and Sterilization

3.AI Humidification

4.Manual Control

Multiple Use Scenarios

Disinfection of public places

Disinfection of offices, bedrooms, kitchens and toilets

Disinfection of shoe cabinet, pet, fruit and vegetable

Disinfection of wardrobe and household articles

Disinfection of toys, fruits and vegetables


Introduction of air purifier

Air purifier is also called “air cleaner”.

It can absorb, decompose or transform various air pollutants (generally including decoration pollution such as PM2.5, dust, pollen, odor, formaldehyde, bacteria, allergens, etc.)

Common used air purification technologies include: adsorption technology, negative (positive) ion technology, catalysis technology, photocatalyst technology, superstructured photomineralization technology, HEPA high-efficiency filtration technology, electrostatic dust collection technology, etc.

Material technology mainly includes: photocatalyst, activated carbon, synthetic fiber, HEPA high efficiency material, anion generator, etc.

Main types of air purifiers

The working principle of air purifier is mainly divided into three kinds: passive, active and passive hybrid.

(1) According to the air purifier’s removal technology for particulate matter in the air, there are mainly mechanical filter type, electrostatic electret filter type, high-voltage electrostatic dust collection, negative ion and plasma method

Mechanical filtration: generally, particles are captured in the following four ways: direct interception, inertial collision, Brownian diffusion mechanism, and screening effect. It has a good collection effect on fine particles but a large wind resistance. In order to obtain high purification efficiency, the resistance of the filter screen is large. , and the filter needs to be dense, which reduces the life span and needs to be replaced regularly.

High voltage electrostatic dust collection: a dust-collecting method that uses a high-voltage electrostatic field to ionize the gas so that the dust particles are charged and adsorbed on the electrode. Although the wind resistance is small, the effect of collecting larger particles and fibers is poor, which will cause discharge, and cleaning is troublesome and time-consuming. , it is easy to generate ozone and form secondary pollution. “High-voltage electrostatic precipitator” is a method that not only ensures the air volume but also absorbs fine particles. This is how the particles are charged with a high voltage before they pass through the filter element, so that the particles are “easy to adsorb” to the filter element under the action of electricity. The high-voltage electrostatic dust collection part originally applies a high voltage to the two electrodes, and when the two electrodes are discharged, the passing dust is charged. Most of the dust is originally neutral or weakly charged, so the filter element can only filter dust larger than the mesh. However, narrowing the mesh of the filter element will cause blockage. The high-voltage electrostatic dust collection method can make the dust charged. Under the action of electricity, it is adsorbed on the specially processed and permanently charged filter element. Therefore, even if the mesh of the filter element is too large (coarse), it can indeed capture the dust.

Electrostatic electret filter: compared with mechanical filtration, it can only effectively remove particles above 10 microns, and when the particle size of particles is removed to the range of 5 microns, 2 microns or even sub-microns, efficient mechanical filtration system will become more expensive, and wind resistance will increase significantly. Filtered by electrostatic electret air filter material, high capture efficiency can be achieved with low energy consumption, and at the same time, it has the advantages of electrostatic dust removal and low wind resistance, but no external voltage of tens of thousands of volts is required, so no ozone is generated. Its composition is polypropylene material, which is very convenient for disposal.

Electrostatic precipitator: it can filter dust, smoke and bacteria smaller than cells, and prevent lung disease, lung cancer, liver cancer and other diseases. The most harmful to the human body in the air is the dust smaller than 2.5 microns, because it can penetrate the cells and enter the blood. Ordinary purifiers use filter paper to filter dust in the air, which is easy to block the filter holes. Dust not only has no sterilization effect, but also easily causes secondary pollution.

Electrostatic sterilization: using a high-voltage electrostatic field of about 6000 volts, it can instantly and completely kill bacteria and viruses attached to dust, preventing colds, infectious diseases and other diseases. Its sterilization mechanism is to destroy the four polypeptide chains of the bacterial capsid protein and damage the RNA. In the relevant standards of the national “Air Purifier”, an air purifier is defined as “a device that separates and removes one or more pollutants from the air. A device that has a certain ability to remove pollutants in the air. It mainly refers to the indoor air. The single air purifier used and the modular air purifier in the central air conditioning ventilation system.

(2) According to the purification demand, the air purifier can be divided into:

Purified type. If it is located in an area with moderate indoor humidity, or does not have high requirements for air quality, the purchase of purified air purifiers will meet the demand.

Humidification and purification type. If it is located in a relatively dry area, and the air conditioner is often turned on and dehumidified by the air conditioner, resulting in dry indoor air, or has high requirements for air quality, it will be the most suitable choice to choose an air purifier with humidification and purification function. LG future celebrity air purifier also has the technology of natural humidification. It uses scientific and technological means to realize the vaporization of water. By rotating the windmill or disc filter, harmful substances are left in the tray for elimination, and only ultra-fine and clean water molecules are discharged into the air.

Intelligent. If you like automatic operation, intelligent monitoring of air quality, or reflect noble taste, or need to be more decent for gift giving, choosing an intelligent olansi air purifier is the best choice.

Vehicle mounted air purifier. If it is used for air purification in cars, it is necessary to specially purify the car odor, car formaldehyde and other internal pollution, and the air purifier can be specially placed in the car. Therefore, the best choice is the vehicle mounted air purifier.

Desktop air purifier. That is, an air purifier placed on the desktop to purify the air within a certain range around the desktop and protect the health of people near the desktop. If you often sit in front of a computer, desk or desk, but the indoor area is not small, or it is a public place, and it is not cost-effective or fashionable to buy a large air purifier at your own expense, a desktop air purifier is a better choice.

Large and medium-sized. It is mainly applicable to indoor occasions with large area, such as home hall, senior bank office, senior administrative office, important lecture hall, conference hall, senior hotel, hospital, beauty salon, kindergarten and other occasions.

Central air conditioning system type. It is mainly applicable to the purification of a single room or multiple rooms with central air conditioning or ceiling.




What air pollutants can air purifiers absorb

Walking into modern homes, we can find that in addition to traditional home appliances such as empty ice washers, home appliances that improve the quality of life such as sweeping robots and air purifiers have also begun to enter thousands of homes. In addition to meeting the needs of daily life, a better quality of life has also become what modern people are seeking. In fact, everyone is no stranger to the product of air purifier. As long as the term PM2.5 was known to everyone, air purifiers entered people’s sight. And as to whether the air purifier is useful or not? Can the air purifier absorb formaldehyde? Such questions also exist. What kind of air pollutants can air purifiers absorb? Working principle of air purifier,Today, let’s talk about this.




PM2.5 has an important impact on air quality and visibility. Compared with the coarser atmospheric particulate matter, PM2.5 has a small particle size, large area, strong activity, easy to carry heavy metals, microorganisms and other harmful substances, and has a long residence time in the atmosphere and a long transportation distance, which is harmful to the quality of the atmospheric environment and the human body. There is a certain threat to health. PM2.5 is not only available outdoors, but also indoors. Ninety percent of indoor PM2.5 comes from smoking, and the cooking fume produced by cooking will also aggravate the indoor concentration of PM2.5. Due to the particulate matter produced by smoking and cooking oil fume, long-term exposure may cause damage to the human respiratory tract.




Formaldehyde is a colorless irritant gas, which has irritating effects on human eyes and nose. At present, formaldehyde has been listed as a “known human carcinogen”. The biggest factor that causes excessive formaldehyde in the indoor environment is home improvement building materials. In home improvement building materials, formaldehyde hides in various glues and coatings in wall paint, floor, and furniture. Formaldehyde can cause tension, dizziness, headaches and other hazards to the nervous system. It can also damage the respiratory tract, digestive tract, circulatory system and nervous system to varying degrees. Long-term living in a house with excessive formaldehyde may cause serious consequences.


Dust, bacteria and other substances


Indoor dust, shedding hair, pet dander, indoor odor, bacteria and viruses and other indoor pollution particles can easily pass through the human hair filter and blood barrier, causing discomfort and disease to humans. Diseases such as allergic asthma, family colds, and other respiratory infections may be closely related to the poor quality of indoor air. Indoor air pollution seriously affects our health every day.


Air purifier mainly uses a fan to draw air into the machine, and then filters the air through a built-in filter, which can filter dust, odor, and disinfect. Generally speaking, air purifiers are suitable for newly renovated or renovated homes, homes with asthma or pets, hotels and hospitals and other public places.

The best air purifier and humidifier and where can we buy the best air purifier

Olansi Healthcare Co., Ltd(Guangzhou Olans Water Treatment Equipments Co. Ltd) is a professiona whole air purifier manufacturer producing negative ions air purifier,activated carbon air purifier,hepa air purifier,antibacterial air purifier and so on.

Consider the other health hazards associated with breathing in everything from household cleaning products to furniture flame retardants, and buying an air purifier seems like a no-brainer. Indeed, experts say certain kinds can be very helpful. But when it comes to one popular type of purifier—so-called “ionizers”—the risks may outweigh the rewards.

Pets share our homes every day and bring with them pet odors, urine stains, and skin dander. For family members who have allergies, these odors can be upsetting and cause respiratory distress, which may result in a visit to the hospital with expensive and prolonged treatment.



An air purifier will improve the overall indoor air quality and in turn, improve your health. We tend to associate air pollution only with outdoor air; however the Environmental Protection Agency (EPA) estimates that indoor air pollution levels can be as many as two to five times higher than outdoor pollutant levels.

Dustpollen, pet dandermold spores, and dust mite feces can act as allergens, triggering allergies in sensitive people. Smoke particles and volatile organic compounds can pose a risk to health. Exposure to various components such asvolatile organic compounds increases the likelihood of experiencing symptoms of sick building syndrome.Air purifiers are becoming increasingly capable of eliminating a greater number of bacterial, virus, and DNA damaging particulates through the use of ultra violet lighting technology.


In fact, indoor air pollution is one of the top environmental concerns in the country. Many of the pollutants removed by air purifiers are known to trigger allergies and asthma; therefore an air purifier will offer relief to those suffering and lessen the possibility of a person contracting them if they don’t already suffer from them. Infants and small children are especially susceptible to contracting asthma and allergies since they spend a majority of their time indoors.

About Guangzhou Olansi Healthcare Co., Ltd

Established in 2009, located in Guangzhou City in South China, Guangzhou Olansi Healthcare Co., Ltd is a professional hydrogen water maker and air purifier OEM manufacturer. The products of the company contain pm2.5 air purifier, home air purifier, HEPA air purifier, ionizer air purifier,air purifier with humidifier,room air purifier and so on. All OEM air purifiers are manufactured in accordance with the CE, ROSH, and CB Certification.

With the advantages of the development of environmental protection technology product development work, to create maximum value for customers.


2022 Choose the right technology to fight different kinds of air pollution

Recently, more and more countries  has been hit by heavy air pollution, with smog increasing and PM2.5 levels climbing. Air pollution in is expected to continue for moths and many authorities advsie citizen wear masks when outside. People are suffering from severe smog, air purifiers have been sold out, most of them couldn’t find a purifier in a store or online.This brings great inconvenience to people’s life. However, when people rush to buy air purifiers, it seems they need to how to choose a good one.

No matter what type of air purifier they are, they are filtered through the surrounding air and then released from it, according to Olansi, an air purifier manufacturer. They can filter pollutants from the air and use various methods to purify the air to a healthy level without pollution. Below is the common purification technology.

Thermal sterilization (TSS)

Ultraviolet bactericidal irradiation – UVGI

Particulate matter (HEPA) filtration

Filter for MERV14

Activated carbon

Electronic polarized medium air purifier

Photocatalytic oxidation (PCO)

Air purifier

Ozone generator

Titanium dioxide (TiO2) technology


Different air purifiers have different purification effects. Air purifiers can also help you avoid some potential risks of breathing in daily life, and different levels of air purifiers have been developed. According to different pollutants to use different filtration technology, air purifier manufacturer Olansi to explain to you, when the face of different air pollution, what kind of purification technology should be used.

  1. Particles in the air.

The HEPA filter’s air purifier removes most 0.3 micron particles.

In the daily living space, the HEPA filter can be pre-filtered to remove coarse particles, and it is designed to control harmful pollutants in the air.And our most common allergies are caused by particulate matter, especially mold spores.Poor quality air purifiers won’t do anything for air pollution, and here Olansi has a trick for you, when purchasing air purifier, is to making sure the filters are made of fiberglass or other synthetic materials.

  1. Bacteria

Heat ACTS as a disinfectant, and UV radiation destroys bacterial DNA. This technique is widely used in medical or biological research

  1. Volatile organic compounds (vocs).


Activated carbon air filter can play a very good role. Examples of VOC are formaldehyde, benzene and dichloromethane. At room temperature and in the air, they can seriously damage the lungs, liver, kidneys and nervous system.

Therefore, if you want a machine with basic functions in purifying air, this machine should include the following functions:


As a manufacturer of air purifiers, we have been working for a healthier living environment. Adhering to the concept of green technology, we have been committed to promoting the iteration and application of health and environmental technology.

Olansi New Seriers


Olansi Health Care provides air purifier OEM/ODM service, which has advantages in both product modeling innovation and product quality and price.

Welcome distributors, wholesalers, traders, contact and cooperate.



The Principle of OLANSI HEPA H14 Air purifier to remove formaldehyde

In recent years, more and more people have realized the harm of air pollution, and they have begun to use air purifiers to improve air quality and ensure a healthy environment. At the same time, they also use air purifiers to remove formaldehyde, which has a long incubation period in the home environment.


Formaldehyde generation and harm

First of all, let’s first understand how formaldehyde is produced and how does it endanger our health? There are three main sources of formaldehyde: the first is all kinds of artificial boards used in the decoration of new homes, as well as the adhesives between boards ; The second is indoor furniture, the adhesive used in the assembly of furniture will further increase the formaldehyde content in the home. Finally, the paint and wallpaper latex on the wall may also cause the indoor formaldehyde content to exceed the standard.


Long-term exposure to formaldehyde can cause chronic poisoning and even cancer. Especially for growing teenagers, excessive formaldehyde may also cause childhood leukemia, memory and intelligence decline. Formaldehyde is a long-term latent harmful gas, which may endanger the health of family members for 3-15 years. It is difficult to eradicate it by conventional methods. Therefore, whether the air purifier can effectively remove formaldehyde has become the focus of attention.

The principle and structure of air purifier to remove formaldehyde


The principle of the air purifier is to promote air circulation through the ventilation system, and the air to be filtered will flow into the 3-4 layers of filters from the air inlet to adsorb and decompose the formaldehyde molecules in the air, and reduce the amount of air in the air after continuous circulation. formaldehyde content, and finally achieve the purpose of purifying formaldehyde.


At present, most of the filters of most air purifiers on the market are stacked according to the pattern of “initial effect + activated carbon + high efficiency”. The first layer isolates larger particles; the second layer decomposes harmful gases such as formaldehyde, and the third layer Three layers to remove tiny particles such as PM2.5.

Among them, there are generally three types of filters used to filter formaldehyde. First, most of them use activated carbon as the main adsorbent for removing formaldehyde. It is a kind of porous carbon with low bulk density and large specific surface area. A variety of gaseous pollutants in the interior; the second is negative oxygen ions, which are degraded into carbon dioxide and water by opening the chemical bonds of organic pollutants such as formaldehyde; the third is through a catalyst called photocatalyst. Water molecules and oxygen molecules are ionized to decompose harmful gases such as formaldehyde.

Why choose a reverse osmosis water purifier? What are the characteristics of reverse osmosis water purifiers?

With the improvement of residents’ living standards and health awareness, the current residents are paying more and more attention to water pollution. Therefore, even in today’s downturn in the home appliance industry, the scale of the water purifier market is still growing steadily. In 2020, the sales volume of water purifiers in my country will exceed 10 million units, of which reverse osmosis water purifiers account for more than 75%, far ahead of other water purifiers. Technical water purifier.

Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses a pressure difference as a driving force to separate a solvent from a solution. Apply pressure to the feed liquid on one side of the membrane. When the pressure exceeds its osmotic pressure, the solvent will reverse osmosis against the direction of natural osmosis. The reverse osmosis water purifier adopts the filtration technology of this principle.

The core of the reverse osmosis water purifier is the RO membrane filter element. Its interception accuracy is as high as one ten thousandth of a micron (0.0001 micron), and only water molecules and a small amount of minerals and trace elements are retained. We know that 1 micron = 1000 nanometers, the diameter of bacteria is relatively large, generally more than 1 micron; the diameter of coronavirus is between 80 and 120 nanometers, and the pore size of RO reverse osmosis membrane is less than 1 nanometer, so filtering bacteria and viruses is not natural. Next. In addition, harmful substances such as heavy metal ions and antibiotics can also be easily intercepted by the RO reverse osmosis membrane of the reverse osmosis water purifier.



Because the interception resistance of the reverse osmosis membrane is very large, the reverse osmosis water purifier is generally equipped with a pressurized pump, which requires electricity and generates waste water. Of course, wastewater can be reused, and it is a good choice for washing clothes, mopping floors, and watering flowers.

Water is the source of life. People can live a week without food, but only three days without water. Whether at home or outside, we all need to drink more water, drink healthy water, clean water, safe water. Compared with other water purifiers, the reverse osmosis water purifier has more complete functions, integrating microfiltration, adsorption, reverse osmosis, ultra-purification and other technologies, making it fresher, more hygienic and safer. Under the current trend of “quality consumption, healthy life”, consumers pay more attention to safety and health, so they are more willing to buy reverse osmosis water purifiers.




Are the home used HEPA filter air purifiers useful in summer?

In the hot summer, wherever it is cool, we just want to stay there! Fans, air conditioners, WIFI, and watermelons have become our summer standard!

Wait, what about air purifiers?


What? Stop kidding, I just use the air purifier to purify the indoor air in smoggy days or after the new house is renovated. Summer is here, the smog is far away, and the house has been renovated for a long time. The air purifier is useless!


OLANSI is going to say no to this statement. We all know that air purifiers are not only for preventing smog, they can also remove indoor pollutants such as formaldehyde, benzene, and ammonia, but did you know? In summer, the indoor air environment can be worse than winter!

Why this?


First, in summer, the temperature is high and humid, and the release rate of indoor pollutants such as formaldehyde, benzene, ammonia and other harmful substances will also be greatly increased. For furniture in the home, pollutants are not released in a short time (it may take up to 15 years to be completely released).


Among them, formaldehyde, known as “the first indoor killer”, is more active in spring and summer than in winter. It is because the volatilization point of formaldehyde is 19°C. When the temperature is higher, the intensity of volatilization is greater. For every degree of temperature rise, the concentration of formaldehyde will increase by 0.4 times, especially in summer when the temperature rises, the release will be more intense. , and the concentration may be 3 times higher than normal.


This is why many people have encountered confusion: my house has been renovated for several years, and the pollutants have not been dissipated. In summer, I can smell a pungent odor.


Second, the weather is hot in summer. As one of the standard configurations in summer, the air conditioner at home naturally runs for a long time. However, when the air conditioner is generally turned on, the doors and windows are tightly closed, the air circulation is naturally poor, and the convection between the indoor air and the outdoor air is reduced. Naturally, pollutants released by furniture cannot be effectively diffused. And the long-term closed indoor environment will also cause various discomforts such as “air conditioning disease” to the human body.


Third, in summer, the body’s own metabolism and the volatile components of various domestic wastes will also increase, which will make indoor air pollution even more serious. The indoor environment monitoring center has done environmental inspections on homes and office buildings, and found that indoor air pollutants in summer are more than 20% higher than other seasons.


Fourth, the humid and high temperature environment in summer is also a “hotbed” for the proliferation of microorganisms. A survey shows that 21% of indoor air quality problems are caused by microbial pollution, which mainly includes bacteria, fungi, pollen, viruses, etc. In addition to directly entering our body, these germs may also pass through attachment to tiny particles, The dust enters our body and causes harm to our body.

After reading these, are you still wondering whether it is necessary to buy an air purifier in summer?

Why do we need to buy an air purifier for indoor air purify?

As we all know, air purifiers are not only used at home, but also in medical, industrial and other fields. The main function of air purifiers is to remove particulate matter in the air, and can also solve problems caused by decoration or other reasons. Indoor and car volatile organic matter air pollution problems. Because the release of air pollutants in these relatively closed spaces is characterized by persistence and uncertainty, the use of air purifiers to purify the air is one of the recognized methods to improve indoor air quality. So, what air pollutants can air purifiers purify? Let’s briefly share them below.


  1. Formaldehyde, Benzene


In recent years, it can be seen in many news that many children or adults have been attacked by formaldehyde because they live in newly renovated houses, but they have not dealt with formaldehyde properly, and finally get “acute leukemia”. It can be seen that formaldehyde has become the largest source of indoor pollution due to some inferior decoration materials and the failure to properly handle the house after decoration. Many formaldehyde raw materials will be attached to wardrobes, floors, and paints, and this is a long-term volatilization process. In addition, harmful pollutants such as benzene are also high pollutants that are harmful to human health.


  1. “Second-hand smoke”


There are more than 1.3 billion people in the world who smoke, which also causes many people to inevitably inhale “second-hand smoke”, and “second-hand smoke” is also the second largest source of indoor pollution. “Secondhand smoke” will release more than 7,000 kinds of chemical substances, of which more than 250 kinds are harmful to human health, and there are 93 kinds of carcinogens and harmful substances. In addition to the possible induction of lung cancer, it may also cause malignant diseases including oral cancer, laryngeal cancer, stomach cancer, liver cancer, etc. In addition, respiratory diseases such as asthma and chronic obstructive pulmonary disease, and cardiovascular and cerebrovascular diseases such as coronary heart disease and stroke may also be induced. Moreover, “second-hand smoke” is more harmful to children’s health.

olansi Products

  1. Air pollution


In the past few years, smog weather has been reported constantly, and even the most exaggerated is that people cannot be seen within ten meters. The haze is mainly composed of sulfur dioxide, nitrogen oxides and inhalable particulate matter, and its impact on the respiratory system can cause acute rhinitis and acute bronchitis; it will also lead to the weakening of near-surface ultraviolet rays, making the infectious bacteria in the air. The activity of the disease is enhanced, and the number of infectious diseases increases; it has a certain impact on traffic safety, and it is easy to cause traffic jams and traffic accidents.


  1. Allergy to pollen


Every year from March to June, it is the high incidence period of pollen allergy. Many people with allergy to pollen have symptoms such as sneezing, runny nose, watery eyes, nasal congestion, etc. However, the allergic phenomenon of users is not serious. Pollen allergy occurs in all age stages from newborn to middle-aged and elderly. There is no obvious gender characteristic, but there are significant hereditary characteristics. Moreover, with the current medical technology, pollen allergy cannot be completely cured, and it is easy to recur, and more emphasis is placed on prevention.


  1. Dust mites


Not many people may have heard of the word dust mites. Dust mites belong to the family Acaridae and a micro-organism of the genus Dust mites. The main species related to human allergic diseases are house dust mites, dust mites and burial mites. Eurasian mites, etc. Dust mites are an important allergen that induces bronchial asthma, and the common clinical manifestations of dust mite allergy are asthma and allergic rhinitis.


These five pollution sources can be restrained by current air purifiers, which is the value of consumers buying air purifiers.