Use the details of the air purifier

Use the details of the air purifier

Indoor air pollution is being valued by more and more people. Experts suggest that it is a good choice to have an effective air purifier at home. Which shape is better for the purifier? What is the relationship between clean air output ratio and room size? Can the purifier be turned on at the same time as the kitchen hood?

1. Regular cleaning of the filter element can extend the service life.
Air purifiers can help consumers purify the air in the room, but they also need to be cleaned up in time. Every two weeks or one month, the cleaner air outlet, air inlet, and internal filter element are regularly wiped and dusted, which can extend the service life of the filter core and greatly reduce the maintenance cost of the product.
2, long-term power supply, avoid direct contact
The use of purifiers is not a short-term effect, but similar to refrigerators, air conditioners, etc., and needs to be used for a long time. In addition, if an air purifier such as electrostatic electret technology is used, since there is a high voltage inside, it is necessary to keep a certain distance from it during use, and do not disassemble the machine.
3, indoor center placement can achieve the best results
The purifier is not a household appliance and can move freely at home. Therefore, when using it, it should be placed in the indoor center as much as possible to clean the indoor air in 360 degrees. Only putting the purifier in the corner of the room will reduce the efficiency of the purifier, so that the indoor air cannot be uniformly purified.
4. After the start-up, the wind is run and then cleaned with a small wind.
When using a top-rated air cleaner at home, it is best to use a large windshield for 30 minutes after the machine is turned on, so that the indoor air can be quickly filtered once to improve the indoor air quality quickly. Then gradually reduce the air volume of the purifier to prevent the noise from affecting the daily rest of the family.
5, keep the doors and windows closed, properly ventilated
In order to avoid the impact of outdoor dust and bacteria on the indoor air, it is necessary to keep the doors and windows closed, but long-term sealing will cause air turbidity and bacterial growth. Therefore, when the outdoor pollution is light, the window can be properly ventilated.

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Is it effective to remove formaldehyde using an air purifier?

Is it effective to remove formaldehyde using an air purifier?

After the home decoration\office renovation, the most important job left is to add furniture. In the process of adding furniture, the most worrying issue is the problem of formaldehyde, especially the formaldehyde content of some furniture exceeds the standard, and the consequences are unimaginable. In order to get formaldehyde, many people recommend using an air purifier to remove formaldehyde on the Internet. Is it effective to use formaldehyde in addition to air purifiers?

I. About furniture and air purifiers
In daily life, formaldehyde is a common condition after renovation. We all know that various materials will be used in the decoration. If the quality of the materials is poor and the manufacturer is not regular, it is likely that formaldehyde will exceed the standard and cause harm to the human body.

The new furniture purchased is actually no less than the formaldehyde content of the decoration. In particular, in order to save money, some owners will buy some cheap sheet metal furniture. This furniture is made of wood board and glue. The formaldehyde content in the glue is the most, and it is the easiest to exceed the standard, which brings danger to the residents. To avoid excessive formaldehyde, we must ensure the quality of the furniture.

However, even if everyone can guarantee the quality of a single piece of furniture, formaldehyde within a reasonable range, it is impossible to ensure that the formaldehyde content of the furniture in the whole house is within a reasonable range. If it is qualified, the ten items may exceed the standard. In addition, the incubation period of formaldehyde is very long, generally, three to fifteen years is possible, if it is not solved, the damage is very large.

Many people now buy air purifiers to improve the air quality of their homes. In modern air purifiers, some technologies for removing formaldehyde, such as activated carbon filters, photocatalyst technology, and negative ions, are added.

Second, how long is the air purifier open?
In order to save electricity, many families often feel that it is enough to open the air purifier for two or three hours a day. In fact, the air purifier does not consume much power and can set the sleep mode. The user does not need to worry about the power consumption of the user. However, if you only open two or three hours a day, it is not effective for removing formaldehyde from newly renovated or newly-furnished homes.

3. Can the air purifier remove formaldehyde?
The top 10 home air purifier is mainly an indoor micro-circulation filter device, which can enhance the freshness of the indoor air for the sealed space. It can help remove formaldehyde, but it can’t put all the hope on the air purifier.

The air purifier test results of the relevant departments reflect that some air purifiers can reduce the concentration of formaldehyde in the air, but the purification rate is very slow. They also proposed that in order to reduce the risk of formaldehyde over-standard, in addition to paying attention to the function of the air purifier, the focus is to start from reducing pollution sources.

All in all, according to the performance evaluation of the 10 air purifiers on the market, the relevant departments showed that formaldehyde could not be removed at all. Even if some high-quality air purifiers can purify formaldehyde, the rate of formaldehyde removal is very slow. Some users think that it is enough to open an air purifier for two or three hours a day. As a result, the formaldehyde content is still exceeding the standard. Air purifiers are not the best choice for removing formaldehyde.

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What is the working principle of the air purifier?

What is the working principle of the air purifier?

The air purifier is mainly composed of a motor, a fan, an air filter and the like. The working principle is that the motor and the fan in the machine circulate the indoor air.

The polluted air passes through the air filter in the machine to remove or adsorb various pollutants. Some models of air purifiers also install an negative ion generator at the air outlet (the high voltage in the negative ion generator generates DC negative during operation). High pressure), the air is continuously ionized, a large amount of negative ions are generated, and is sent by the micro fan to form a negative ion airflow, so as to clean and purify the air.

Main species

1. Passive adsorption filtration purification principle (filter purification)

The main principle of the passive air purifier is to use the fan to pump air into the machine and filter the air through the built-in filter, which can mainly filter dust, odor, toxic gas and kill some bacteria. The filter screen is mainly divided into: a particulate filter and an organic filter. The particulate filter is further divided into a coarse filter screen and a fine particle filter screen.
2, active purification principle (no filter type)

The fundamental difference between the principle of an active top rated air purifier and the principle of passive air purging is that the active air purifier is free of the limitations of the fan and the filter.

It is not passively waiting for the indoor air to be pumped into the purifier for filtration and purification. Instead, it effectively and actively releases the purification and sterilization factor into the air. Through the characteristics of air diffusion, it can reach the corners of the room to clean the air without dead angle.
3, double purification class (active purification + passive purification)

This type of purifier combines passive purification technology with active purification technology.

Extended information:
Purification effect
First compare it from air purification efficiency. In the air purifier of the passive adsorption purification mode, since most of the air purifiers are used in the mode of the fan + filter, the flow of the air using the air is inevitably dead.

Therefore, passive air purification can only produce a certain purification effect around the air purifier. It takes a long time to filter all the indoor air, which is difficult to produce an effect on the purification of the entire indoor environment.

Active air purification utilizes the diffuse nature of air to bring the purification factor to all corners for air purification. The air can diffuse to the place where it can be purified.

Comparing with the negative ion air purifier, it is found that after the negative ions are released from the air, the negative ions can actively attack, find the pollutants in the air, and agglomerate into a group, and actively settle them. From this point of view, active air purification has obvious advantages.
The negative ion air purifier is different, not only can effectively remove particulate pollutants in the air, decompose harmful gases such as formaldehyde, provide clean air to the indoor environment, and provide air negative ions that have an efficient effect on human health care in the indoor environment. Make indoor air quality the standard of “healthy air”.

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There is an air purifier in the house, and there is no need to install a fresh air system?

There is an air purifier in the house, and there is no need to install a fresh air system?

It’s almost smog, and almost every day, a friend asks a question: Is there an air purifier at home, and is there a need to install a fresh air system?

Main functions of the fresh air system

Personal opinion: The most important role of the home fresh air system is to improve ventilation.

The original intention of the fresh air system was to improve the ventilation of large indoor spaces. To put it bluntly, as long as it is a device that can speed up indoor and outdoor air exchange, even if it is only an exhaust fan that can pump air inward or outward, it can be regarded as a kind of fresh air.

Later, people found that although the simple ventilation was supplemented with oxygen, the outdoor air was not so pure, so a purification device such as a HEPA filter or an electrostatic dust collector was added to the air inlet. Come, the air entering the room is relatively clean, and after running for a while, the indoor air can reach a relatively good level.

This is the common home fresh air system nowadays.
PS, fresh air has many functions (such as dehumidification, humidification, heat exchange) because it is only for the friends who are most concerned about the current function of the friends around, it is not launched one by one.

From this brief introduction, you can see the two most important functions of the fresh air system:
Ventilation and ventilation, discharge carbon dioxide from the room, and inject fresh air;
Filter dust from outside air and pollutants such as TVOC;

What is the purification capacity of the fresh air system?

Many people are recognized for the ventilation function of the fresh air system, but their purification ability is somewhat inaccurate.

On the market today, most qualified fresh air systems have a purification capacity consisting of two major aspects:

HEPA filter adsorption at the air inlet, or electrostatic dust collection. This is a good understanding, the air is purified before entering the room, and the principle of the air purifier is the same;
Micro-positive pressure; this principle is slightly rounded, but it is indeed the advantage of the new fan compared to the purifier. To put it simply, when the fresh air is pumping into the room, the indoor air pressure is slightly higher than the outdoor air. In this way, dirty air outside can not enter the room along the door and window.

Inflate the balloon as an example.

The pump is like a fan of the fresh air system, and the balloon is like our room. If the balloon is perfect and airtight, then the balloon will swell up quickly.

But all the rooms can’t be completely sealed. In fact, pm2.5 is also going into the room along with these eyes.

It’s like a leaking balloon. So what happens if you are pumping up a leaking balloon?

Is it possible to “squeak” out of the air in the place where the air leaks, so can the gas outside the balloon enter the balloon from these loopholes? Of course, it will not work. In this way, the indoor air is kept clean as much as possible.

Therefore, the conclusion is that qualified new wind turbines are also reliable.

Fresh air system PK air purifier

This is a question that everyone is very concerned about. It is a bit clear to say.

As an example of brain-destroyed mathematics that everyone has done in elementary school, you know the difference between the two.

The air in the room is like the dirty water in a swimming pool.

The way of the fresh air system is to reserve a good entrance and exit in the swimming pool while pouring tap water into the pool and releasing water (how many minutes can you change the water?)

The air purifier is different, only need to use a pump, pumping water from the pool, filtering and then returning to the pool (how many minutes can you filter the water?)

(Note my wording: the new wind is “changing” and the purifier is “filtering”)

This shows the difference between the two:

The installation of the fresh air system is larger. In addition to the installation equipment, the air inlet and outlet are reserved, and the pipeline type also needs to be buried.
At the same time, the efficiency of purification is relatively low, and the cost (including the replacement of the filter element, electricity bill, etc.) is also larger. The advantage is that because there is always fresh air injection, you will not feel “squeaky” because of lack of oxygen, and once the original dirty air is discharged, the room is easier to maintain a cleaner state;

The best and cheap and best air purifier is more efficient in clean air and relatively inexpensive. The only downside is that because it has been circulating in the room all the time, it is easy to lack oxygen and it is easy to feel “boring”.

After all, the air purifier can quickly remove the smog and reach the most basic air quality, but it can’t do anything about the problem of low oxygen and high CO2. For the foggy area, the purification ability of the fresh air system does not account for the advantage, the pain point that it really wants to solve is the ventilation problem in the smog period.

Therefore, my personal point of view is that just to remove the shackles, close the doors and windows, and pick up a good air purifier; but considering the quality of life, prepare for long-term trenches, especially if you have children, match the new wind. The system is the best!

Filter life problem
Maintenance costs may be the biggest headache for the fresh air system.

Because the fresh air is pumped from the outside, it is equivalent to working in a hazy environment, which makes the filter consumption very fast. In addition, due to the limitation of space volume, the fresh air is often thinner.

I have calculated that in the heavy haze days, many imported new fan filters (foreigners do not consider my national conditions at all), often need to be replaced once every 3 to 5 days, otherwise the purification efficiency will plummet.

However, smart engineers have developed internal circulation functions on new wind turbines. To put it simply, in the case where the indoor CO2 concentration is not high, the air is not exhausted from the outside but is changed from the indoor air, which actually becomes an air purifier.

If there is a new wind, you don’t have to worry about decoration pollution.

This is actually a digression. I have seen the previous articles of the Loofah dad know that the personal pollution of the decoration is relatively conservative. After all, this is a toxic and non-toxic category, and it is sloppy.

In theory, if the air volume of the fresh air system is large enough, it is very fast to discharge the formaldehyde and other pollutants accumulated indoors.

At present, personal observations of many users’ measured results do not seem to be so ideal. A detailed analysis, there are two reasons:

1, the air volume is not big enough; not enough to quickly dilute the concentration of indoor pollution gas; because under normal circumstances, the family generally does not let the new fan work at the maximum file;

2. The fresh air system itself is also likely to have its own source of pollution (a few products with poor workmanship). Because the glass and the pipe will be glued when the fresh air is installed, and the fixed HEPA filter and the frame are also useful for the glue. Therefore, if the materials used in these places are not good, they will be self-contained.

Therefore, even if a new wind is installed, it cannot be relied on, and it still takes a long time to monitor.

Summary two sentences

Finally, briefly summarize two sentences:
1. The new wind is reliable, and its greater role is to solve the problem of ventilation and improve the quality of life; this must be clear;

2, the best combination of the home is still a fresh air + air purifier, the two have their own advantages, complement each other; there is space to install, and the family with this budget, it is worth loading.

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How does the air purifier purify the air? Be alert to secondary pollution when using

How does the air purifier purify the air? Be alert to secondary pollution when using

When the smog weather occurs, the air purifier becomes the new favorite of the family. Air purifiers can adsorb, decompose or convert various air pollutants, including PM2.5, dust, pollen and more.

How does a cheap and best air purifier remove particulate matter from the air? There are currently three main methods: mechanical filter type, electrostatic electret filter type and high voltage electrostatic dust collection.

The mechanical filter is a physical interception, which uses a filter to filter out particles in the air. In order to improve the purification efficiency, the filter structure needs to be very dense, and the impact force of the airflow on the filter screen is relatively large, so the filter has a short life.

The electrostatic electret filter is a dielectric material made of a polypropylene film, which can store space charges for a long time and utilize the electrostatic force of the charge to trap dust particles. The air is filtered by the electrostatic electret material, and the dust removal wind resistance is low, and the high capturing efficiency can be achieved with low energy consumption.

High-voltage electrostatic dust collection uses a high-voltage electrostatic field to ionize the gas so that the dust particles in the air are electrically adsorbed to the electrodes. This method of dust collection has a small wind resistance and a high efficiency for collecting dust from smaller particles. However, the effect of capturing larger particles and fibers is poor, and it is easy to discharge. The cleaning takes time and effort, and ozone is easily generated to form secondary pollution.

In addition to the above three-particle removal technologies, newer air purifiers currently have negative ion and plasma methods. The two methods of removing dust particles are similar to high-voltage electrostatic dust collection. All of the particles in the air are charged and coalesced to form larger particles. However, the particles are not actually removed, but they are attached to the surface, which is likely to cause dust to rise again.

General household air purifiers are mainly filtered type and electrostatic type. The main difference between the two is that the filter type is equipped with a HEPA (High-Efficiency Air Filter) filter that needs to be replaced, but the electrostatic type does not. The electrostatic air purifier needs to clean the electrostatic dust collecting parts frequently. The filter air purifier is the most common type of product on the market, and its magic weapon is safe and efficient.

The most harmful to the human body in the air is dust less than 2.5 microns because it penetrates cells and enters the bloodstream. Electrostatic air purifiers filter dust, smoke, and bacteria that are smaller than cells. Using a high-voltage electrostatic field of about 6000 volts, it can instantly kill bacteria and viruses attached to dust and prevent diseases such as colds and infectious diseases.

The core of the filter air purifier is the filter, and each purifier has several layers of different functional filters. The filter is dirty and the water cannot be washed and must be replaced. When the filter material is saturated, it becomes a “source of pollution” and secondary pollution occurs. Therefore, even in the case of good air quality, the filter can not be used for more than half a year.

Some merchants claim that air purifiers can remove formaldehyde. Is this true? The evaluation results of the National Indoor Interior-Environment and Environmental Product Quality Supervision and Inspection Center show that the existing air purifiers are basically ineffective. As a consumer, you must have a pair of eye-catching eyes, don’t be fooled by the publicity of the business.

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Quickly remove formaldehyde and live in a new home, use ventilation + air purifier

Quickly remove formaldehyde and live in a new home, use ventilation + air purifier

The indoor environmental pollution is mainly caused by the presence of various volatile organic compounds in the indoor air, such as decoration materials, furniture, incomplete combustion of fuels, and chemical agents, which cause air pollutants to accumulate in confined spaces for a long time and cause pollution to the indoor environment.

In family life, decoration pollution mainly exists in the form of gas. The more common pollutants are formaldehyde, benzene, ammonia, TVOC, and other pollutants.
Formaldehyde is mainly found in various types of non-environmental plates, paints, paints, and decorations. Formaldehyde is harmful to human health and may cause cancer in severe cases. Benzene, ammonia, and TVOC scavengers are mainly found in paints, paints, and wallpapers. The easy diffusion of benzene in the air can cause damage to the human hematopoietic system and affect pregnant women and fetuses.

The resistance of different people to pollutants is not the same, so how long it takes to stay can not be generalized.

Generally speaking, ordinary adults can stay in the air for 3 months after the renovation is completed. However, if you still can smell the irritating smell when you check-in, you need to consider delaying the stay. It is best to ask the professional organization for indoor pollution detection. Secondly, the later the check-in time, the better. If it is necessary, it must be more than half a year and use various measures to remove pollution at home.

Therefore, many new homeowners will use various methods to remove formaldehyde after renovation. Although they cannot be completely controlled, we can reduce indoor pollution to a minimum by some means.

In order to be able to quickly and safely enter the new home, the following several methods for removing formaldehyde are recommended.

The preferred choice for household formaldehyde removal is to maintain good ventilation. This is mainly due to the low cost of ventilation and easy operation. The circulation of indoor air can accelerate the drying of paints and the like, thereby releasing harmful gases and discharging them outside through air circulation.

However, everyone has overlooked one point: What is the effect of ventilation? In fact, the effect of window ventilation depends mainly on various external factors such as weather, range, and type of house. If there are rain and rain, we can’t open the window, and the ventilation will not be able to play a role. In addition, for example, the reason for the type of house, the house is in a leeward place, or the windows in the home are rarely conducive to ventilation (many families are dark guards). Therefore, if you want to rely solely on ventilation to remove formaldehyde, it is best to dispel this idea as soon as possible and cooperate with other methods of removing formaldehyde.

air purifier
The use of technology as much as possible, in addition to ventilation, if the economic situation allows, you can consider the use of air purifiers, even the installation of fresh air systems will receive better results.

Air purifiers are a new type of household appliances that have entered Chinese homes in recent years, mainly to clean indoor air. The core technology of air purifiers is physical filtration. The fan inside the purifier “pushes” the indoor air into the machine and isolates the contaminants through the filter. The filter has a certain pore size and different sizes of pores, which can isolate particles of different diameters.

The decoration pollution is a gaseous pollutant, the diameter is much smaller than the particle pollutant, less than PM2.5, and can not be isolated by the filter. Therefore, most air purifiers can only remove particulate contaminants, and they are also helpless with gaseous pollutants such as formaldehyde and benzene. Therefore, in addition to formaldehyde must choose a formaldehyde air purifier.
In addition to formaldehyde air purifiers must have two points: First, the filter layer can absorb + decompose formaldehyde, which not only can firmly lock the formaldehyde but also prevent secondary pollution from escaping. Second, it is necessary to accurately display the value of formaldehyde, so that it can detect the change of formaldehyde value in the whole house. It is clear at a glance, and people are very relieved!

Activated carbon
Activated carbon is a self-porating adsorbent that absorbs formaldehyde from the air and stores it in its own pores. Because most activated carbons have better absorption capacity, but only by absorption to control pollution, it will not be long before it reaches saturation. At this time, the activated carbon can not only play the role of removing formaldehyde but also become a source of pollution to release the absorbed formaldehyde. Therefore, when it is generally used for about 3 months, it is recommended to throw away the old activated carbon, replace it with new charcoal, or choose a new type of activated carbon such as coconut coke, which will last for a long time.

Nano live ore
Nano-live ore is imported from the active volcanic ore, sepiolite, and other pure natural ore and non-metallic rare earth ore, through deep purification and scientific ratio, through the original process to improve the finely produced particles. All of them are international mainstream natural environmentally friendly raw materials, with extremely developed Emi and nano-scale pores (1 angstrom = 10 nm), and the micropore diameter is concentrated at 0.23-0.91 nm, which is 5000 times that of the same-body activated carbon. Toxic and harmful gases such as formaldehyde, benzene, ammonia, hydrogen sulfide, sulfur dioxide, TVOC, etc.

Nano live ore has the advantages of decomposability, long life, and no secondary pollution.

Increase air humidity
The increase in indoor air humidity can condense many small water droplets in the indoor air, and the formaldehyde floating in the air is absorbed by these small water droplets. However, since the water droplets gradually evaporate over time, the absorbed formaldehyde is released again, and thus it can be seen that this method cannot be applied to long-term removal of formaldehyde.

The above four methods are the most mainstream and most effective methods for removing formaldehyde. Many households choose formaldehyde and top 5 large air purifiers in addition to formaldehyde. In the weather that is not conducive to window ventilation, the best room air purifier is turned on in addition to formaldehyde. , Convenient and practical.

Summary of invalid methods:
Although the plant can absorb a small amount of formaldehyde, the absorption is very small, which is a drop in the bucket for decoration pollution. The peel can’t remove formaldehyde, can’t absorb formaldehyde, and can only cover the decoration taste with aroma. The vinegar is similar to the peel and does not react with formaldehyde. It only uses a pungent odor to cover up the taste of the decoration. Governance methods must be scientifically chosen, and must not be used to save money and listen to rumors, and delay the timing of governance to endanger health.

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Is it necessary to use the summer air purifier?

Is it necessary to use the summer air purifier?

Many people buy best room air purifier cigarette smoke to purify indoor air in the haze. With the arrival of summer, the foxes are also temporarily away, so is it necessary to use air purifiers?
The answer is yes!
In fact, the air purifier is not only to prevent smog, the large room air purifier for smoke also has the function of removing indoor pollution, formaldehyde, bacteria, pollen and so on. And you know?
Summer indoor air environment may be worse than winter!
Why is indoor pollution worse in summer?
High air conditioning disease
In summer, the weather is hot, and people use air conditioners for summer.
However, although the air-conditioning is cool, but the doors and windows are closed all day long, not only the humidity is very large, but also the indoor air is not circulated, causing the indoor air pollution to cause various discomforts, chest tightness, coughing, sneezing and the like.
The report of the Indoor Environment Monitoring Center of the China Interior Decoration Association also confirmed that indoor air pollution testing in summer will be about 20% higher than other seasons.
Active bacterial infection
Little boy wearing a crayon hat
Because summer is the season of bacterial reproduction, in addition to directly entering our body, these bacteria can enter our body by attaching particles and dust with a diameter of less than 5μm.
Even through our speech, coughing, sneezing, etc., pathogenic microorganisms in the mouth, throat, organs, and lungs are easily transmitted to other people through the air, such as some epidemics caused by the spread of germs.
Increased formaldehyde volatilization rate
As the summer temperature increases, the volatilization of indoor pollutants also increases significantly.
According to the statistics of the health department, the humidity increased by one degree, and the concentration of formaldehyde and benzene released from furniture increased by 015 to 0.37 times.
The pollutants in the home are not released in a short time. It takes 15 years to completely release the cleanliness. It is best to avoid the summer and then move to the new house. The elderly and pregnant women need to pay special attention.
Architectural,old,light,hotel,apartment,house,white,indoor,table,plant,features,curtain,painting,wood floor,modern,creative,art,real estate
How to prevent indoor air pollution in summer?
1. Ventilation and ventilation. You can open the window when the temperature is not so high every morning and evening, as long as 2 hours can greatly reduce the concentration of indoor pollutants.
For long-term use of air-conditioned rooms, new renovations, and rooms with new furniture, pay special attention to window ventilation every day.
2. Use an air purifier. Air purifiers are the most effective way to improve air quality.
It can effectively filter dust, bacteria, toxic gases, etc. in the air. Don’t worry about the summer air purifier need to be used?
In fact, in today’s environment where the environment is not very good, many harmful gases, substances and germs are often around us.
Using an air purifier, it is indeed essential to create a healthy air environment for the family and yourself.
Dividing line
Environmental regenerator purification technology
HEPA’s highly efficient and quiet multi-layer progressive filtration technology removes all kinds of pollen, dust mites and other allergens in the air as low as 0.1 micron by electrostatic and physical adsorption;
Multi-filter technology (composite filter) can effectively inhibit, filter and disintegrate pollen, insects, second-hand smoke, fungi, formaldehyde and other suspended particles. The application of cold catalyst technology combined with PM2.5 and ash-specific filtration can make the filtration, purification and sterilization efficiency of 0.3 micron particles high.
Multi-filter technology can effectively inhibit, filter and disintegrate pollen, insects, second-hand smoke, fungi, formaldehyde and other suspended particles. The application of cold catalyst technology combined with PM2.5 and special filtration of ash can make the filtration, purification and sterilization rate of 0.3 micron particles up to 99.97%.
360 degree wind direction, three-dimensional circulation purification of the surrounding air, so that the negative ions generated by the machine spread to every corner in the surrounding area at the fastest speed, the negative ion purification effect is good (the reason for the fresh air in the forest is because there are more negative oxygen ions in the air)
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12 questions and answers about smog and air purifier

12 questions and answers about smog and air purifier

Today we have summarized 12 issues that everyone cares about and are related to smog, to answer them one by one.
Do you want to open the window in the fog?
A: Of course not.
Some people say that the fog is coming, the air quality in indoors and outdoors is similar, and it is not as good as ventilation through windows.
This statement is wrong. In the case of normal closing of doors and windows in foggy days, the indoor PM2.5 concentration is nearly half lower than that of the outdoor. Friends with top rated air purifiers for large rooms can see it from the test data. Opening the window will allow the outdoor high concentration of harmful particulate matter to enter the home without any obstacles, seriously affecting the indoor air quality and threatening our health.
Secondly, most people use heating/air conditioning equipment or humidification/dehumidification equipment at home. Ventilation of the window will cause heat/cooling loss and humidity imbalance in the room, which is not energy-saving and environmentally friendly.
Therefore, our solution to the people in the smog area is “a fresh air system with filtering function + a reasonable number of large room air purifier for smoke”.
What is a fresh air system?
A: The fresh air system is a kind of home appliance that can continuously deliver fresh air to your home and discharge indoor dirty air. It can continuously change indoor air, let the indoor air flow and keep fresh.
The fresh air system mainly has three types: central ceiling pipe type, wall type and cabinet type.
The central ceiling pipe type can be hidden in the ceiling, the fresh air effect is better, but the price is relatively high, and the installation design requirements are also relatively high. Wall-mounted and cabinet-type are non-pipeline fresh air systems, which are divided into one-way flow and two-way flow.
The working mode of the new fan in one-way flow can be understood as only entering the air. The air is continuously drawn in and then the dirty air in the room is squeezed through the window slit and the door seam, and there is no independent exhaust outlet.
The two-way flow of the new fan can be understood as having the presence and exit, while the air is continuously pumping in, and there is also a separate exhaust vent to discharge the dirty air.
What is the difference between an air purifier and a fresh air system? How should I choose?
Answer: The air purifier is responsible for purifying the indoor air. It is the inner circulation. The fresh air system is used to filter the outdoor air and then pump it into the room to realize air circulation and increase the indoor oxygen content.
At present, the fresh air system in China is based on the current state of air quality, the filtration level has been improved, ventilation and ventilation can also maintain a good filtration effect.
If the local air quality is relatively poor, it is recommended to buy both the fresh air system and the air purifier. The fresh air system can be turned on 24 hours a day. When the indoor and outdoor air quality is relatively poor, both of them are turned on at the same time.
Why are there so many differences in the appearance of the air purifier? Which one is more suitable for the family?
A: These differences are caused by the structure of the air purifier. For households, a purifier with a double inlet structure is more recommended.
At present, the air purifiers on the market can be roughly divided into four types: half-tower, tower, box, and double-inlet. The reason why the double-intake is more recommended is because its structural advantages are obvious.
Its air duct is very short and direct. The sides of the machine are large-area filters and enter the wind at the same time. The air is not blocked too much and is quickly blown out from the top of the machine with lower noise. In particular, it maintains a high air purification efficiency (CADR value) even when the minimum wind is applied, which is more suitable for the family to open 24 hours, and the lower noise will not interfere with family rest.
Moreover, its price is moderate, the price of the family version is generally around 5,000 yuan, compared to the tower price of about 10,000 yuan or so.
Is the higher the CCM value of the air purifier, the better?
A: Not the higher the better.
The CCM value represents the service life of the air purifier filter. The home environment is relatively small and does not require too high a CCM value.
It is best to end the smog season every year, the filter screen is almost dead, and replaced directly. Otherwise, when the season of the purifier is not very good, the filter screen will be delayed and not replaced, and the harmful substances inside will be easily mildewed and deteriorated, causing secondary pollution.
When purchasing an air purifier, you can directly purchase a family model. Do not blindly pursue high-end business choices. The best is the best.
Can buying an air purifier solve all indoor air pollution problems?
A: No.
The main function of the air purifier is to purify indoor particulates through a HEPA filter. Some high-end purifiers also have activated carbon and other purification media, which may have a certain purifying effect on formaldehyde and some volatile organic compounds with odor.
But in fact, formaldehyde is only a kind of indoor harmful gas. You may also breathe a series of toxic or even carcinogenic gases at home, such as TVOC (total volatile organic compounds), strontium, ammonia and so on.
According to the World Health Organization’s 2016 data, indoor air pollution kills 4.3 million people worldwide each year, 600,000 more than outdoor pollution. Indoor harmful gases have exceeded the pollution of outdoor particulate matter and become an important factor threatening our health.
For these harmful gases, air purifiers alone cannot solve them.
The best way to solve indoor air pollution is to avoid using too complicated building materials, try to buy large brands of home improvement products, and ventilate the air. If there is no window opening condition, you can install a fresh air system, which can not open the window. Under the 24-hour ventilation.
What kind of mask can prevent smog?
A: It needs to meet certain standards. There are three main types of identification for these standards.
N95. The well-known N95 is not a specific product name. It is a mask classification of the US standard, that is, in the US NIOSH (National Institute for Occupational Safety and Health) standard, “filtering non-oily particles is more than 95% efficient” and passed A type of mask reviewed by NIOSH.
NIOSH has conducted a series of research and specifications on respiratory protection products since the 1980s and is now continuously updated. For PM2.5 granules, or to protect against some of the disease spread through the air, this can be achieved with a N95 mask.
▲ US NIOSH standard
KN90. On some packages you can see the words GB2626-2006 KN90, which is the Chinese standard established in 2006.
According to the GB2626-2006 standard, our country uses sodium chloride aerosol to represent non-oily particulate matter and paraffin oil to represent oily particulate matter to test the protective ability of a professional mask product. The particle size used in these test standards is less than 2.5 microns and is therefore considered to be protective against PM2.5.
▲ China GB2626-2006 standard
FFP1. This is the European standard and is certified by the Comité Européen de Normalisation (CEN) respiratory protection equipment. The standard is to divide the particulate protective filter into two types: solid particle protection and liquid particle protection, which are tested and classified by NaCL (sodium chloride) and DOP (paraffin oil) aerosols respectively.
▲ European EN standard
How to choose a mask?
A: The phrase “There is no best, only the most suitable” is the mask. In addition to the above mentioned points, in order to meet certain standards, we believe that fit and comfort are also important considerations.
“Efficient fit” is a prerequisite for all dust masks to work. The air is like a stream of water, where it flows first where resistance is small. A mask that does not form an effective confined space on your face is uncomfortable and has no effect.
If a mask leaks, it is really not as good as a dog, no, it is better not to wear it.
The other one is comfort. A mask is good to wear, Le Bleu does not press the nose, whether the breath is smooth, there is no taste, etc., we must consider the choice of masks.
Before we bought 15 anti-mite masks for a detailed evaluation of comfort, interested can drop down to the final recommended reading, the first one is oh.
What are the small details to pay attention to when wearing/protecting masks?
A: In the process of purchasing and using, you need to pay attention to these points:
It is best to buy a single individually packaged mask (see the next question for reasons).
A head-mounted or neck-worn mask will have a higher fit than an ear-worn fit.
A mask with a skeleton will not cause a mask to contract with the breath during vigorous and rapid breathing, and the comfort of breathing will increase.
The mask that has just opened the bag will be somewhat tasteful. You can open the package in advance, or take out the mask and open it.
Disposable protective masks are not washable. Do not modify the mask yourself.
Mask replacement time varies from person to person, the surrounding environment, the time spent on the road, the way of wearing, and the frequency of use will have an impact. There are no strict life regulations for everyday applications (usually 3-4 days). However, when the protective mask is damaged, dirty or the breathing resistance is too large, the mask should be replaced in time.
If the glasses don’t fog, make the sealed nose clips fit the nose as much as possible.
Long-haired girls can wear a high ponytail or a large ball when wearing a head-mounted mask, so that the upper rope can be fixed at a higher position, which can improve the fit and comfort.
Some special people, such as children and the elderly, should wear masks carefully.
How to use the used anti-mite mask?
A: It is recommended to put it in its original packaging bag.
After the mask is unpacked, we always habitually throw away the bag. In fact, this bag is a tool for storing the used anti-smashing mask.
Many of the better-designed tamper masks are now individually packaged, and a better mask package uses a zippered self-sealing port. Do not throw the bag after unpacking. The anti-smash mask is not required to be put back, and the plastic seal can be sealed to effectively avoid contact with external pollutants.
However, it should be noted that the anti-mite mask has just been taken off, it is best to cool it a little and dry it, and then put it in, to avoid the residual temperature in the bag to generate steam, breeding bacteria.
Is the breathing valve on the tamper mask really useful?
A: It is really useful.
Most breathing valves are one-way valves. When inhaling, the breathing valve is closed and gas is passed through the mask fabric into the interior. When exhaling, the gas can be quickly discharged to avoid the feeling of tightness.
If there is no breathing valve, the hot and humid air tends to accumulate inside the mask, causing discomfort, which can cause dizziness due to lack of oxygen. Therefore, the price of a mask with a breathing valve will be relatively expensive.
Is the electric tamper mask a gimmick or is it really practical?
A: The gimmick does not work, and it does.
Everyone knows from the above questions. As long as the mask meets the standard and the fit is good, it can better prevent sputum, and this electric smash-proof mask has taken a new step in comfort. This kind of mask can actively deliver air, not boring, and is more suitable for running and riding.
Electric tamper masks are also known as fresh air masks and are currently available in two types.
One is piped. It is pumped into the outside air through a small new fan attached to the arm. After being cleaned by a new fan, it is piped to the mask for breathing.
The downside is that it’s a bit ugly. The big pipe is connected to the mask and the new fan. It is especially like someone who runs out of the hospital intensive care unit.
The other is non-pipelined. The new fan is integrated into the mask, and the value of the fan is greatly improved. The disadvantage is that the volume is large and has a certain weight. The new fan is closer to the ear and has some noise.
Nothing else, as long as you don’t care about other people’s eyes, even if you wear it.
Finally, remind everyone again that if the local area is also affected by smog or dust, it is best to bring the mask. We also welcome everyone to share the air conditions in their respective locations in the message area, so that we envy envy.
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Is the air purifier useful?

Is the air purifier useful?

Nowadays people are living in a worse and worse environment. Endless industrial emissions and ubiquitous automobile exhausts have led to increasing air pollution. Studies have shown that contemporary people living in dirty air will lose 10 years of life! The haze weather, PM2.5 has warned people of the serious impact of air pollution. The indoor air pollution poses a greater threat to the human body, so many consumers have purchased top rated air purifiers for large rooms. However, there are always many consumers who have a question in mind: Is the large room HEPA filter air purifier useful?
Beijing TV’s “Life Face to Face” program has been useful for air purifiers. The program team once experimented with two air purifiers at the Environmental Quality Testing Center of Tsinghua University to explain whether the air purifier is useful. The test results in the sealed environmental chamber reduced the concentration of respirable particulate matter in tank 1 by 65% ​​and the concentration of respirable particulate matter in tank 2 by 59.5%. It can be seen from the experimental results that the air purifier can effectively reduce the inhalable particulate matter, thereby effectively indicating whether this problem is useful in the air purifier.
Consumers can also judge the usefulness of air purifiers from the principle of air purifiers. There are three principles of air purifiers: passive purification (filter purification), active purification (no filter) and dual purification (active purification + passive purification). The passive air purifier principle draws air into the machine through a fan, filters the air through the built-in filter, and can filter dust, odor, toxic gases and kill some bacteria. The principle of the active air purifier is free from the limitation of the fan and the filter screen and effectively releases the sterilized silver to the air to achieve air purification in all corners of the room.

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What is better for fresh air systems and air purifiers?

What is better for fresh air systems and air purifiers?

The invisible killer that pollutes formaldehyde, smog, and bacteria around us is endangering the health of the family. In order to improve the indoor living environment, air purification equipment is increasingly entering the ordinary family.
· Whose pot is the unhealthy indoor air?
Excessive concentrations of harmful microparticles (PM2.5): Long-term inhalation is harmful to health because of the high indoor PM2.5 concentration caused by haze and second-hand smoke.
Excessive concentration of harmful gases (TVOC): TVOC includes various harmful gases such as formaldehyde. Indoor TVOCs are mainly derived from combustion products such as natural gas, smoke from smoking, heating, and cooking, and glues, paints and paints in construction and decorative materials. , plates, wallpapers, furniture, etc.
The oxygen content is too low: people inhale fresh air and exhale carbon dioxide. For a long time, the amount of oxygen in the air is less and less, which may easily lead to dizziness and nausea.
Which living environment requires air purification?
Homes that have just been renovated or refurbished; homes for the elderly, children; homes for people with asthma, allergic rhinitis, and pollen allergies; homes for pets; homes that are more closed or affected by secondhand smoke; homes for pregnant women and newborns The residence of people who enjoy a high quality of life.
For modern homes, the use of top-rated air purifiers for large rooms and fresh air systems to improve indoor air quality is an effective method. So, what about the highest rated room air purifiers or the fresh air system?
air purifier
The core purpose of the air purifier is to purify indoor air, filter harmful substances such as PM2.5 and formaldehyde, and maintain indoor air at a level that is not harmful to health. The air purifier is treated with indoor air, which reduces the content of PM2.5 and TVOC, but does not change the oxygen content.
When using an air purifier, a long-term start-up can make the indoor pollutants reach the final desired purification effect. In order to ensure a good purification effect, it is recommended to place it in the middle of the house. But it is best not to be too close to the human body to avoid being affected by harmful gases around the purifier.
In addition, the air purifier should be cleaned and maintained regularly, and the degree of adsorption of the filter layer of the air purifier should be monitored and checked in real-time to be cleaned and replaced in time according to the pollution situation and extent. When cleaning the coarse filter of the air purifier, it can be rinsed with clean water, but the HEPA filter can’t be washed with water. In order to prolong the service life of the HEPA filter, it is generally cleaned with a vacuum cleaner.
Fresh air system
The fresh air system can efficiently filter the outdoor air without opening the window, and then remove the harmful gas to remove the fresh air. The most basic function of the fresh air system is to change the air and maintain the oxygen content in the indoor air by introducing new air into the closed room. By ventilating, the oxygen content is reduced while reducing PM2.5 and TVOC content.
The ventilation of the fresh air system is orderly and controllable. It uses the design of the air outlet and the air inlet to deliver fresh air to the place where the owner needs it most, while the dirty air in the room is discharged for the first time in the shortest distance. Moreover, the ventilation of the fresh air system is gentle and quiet, continuous without noise, and does not form a more comfortable interior. Not only that, but many fresh air systems now have a heat recovery function that makes the interior more comfortable and more economical and energy-efficient during operation.
The fresh air system is responsible for maintaining the indoor oxygen content and performing a preliminary filtration. The air purifier is responsible for repeatedly cleaning the air entering the room to achieve a healthy level.
When considering the purchase of air purification equipment, the fresh air system and the air purifier are not an alternative. When conditions permit, especially in new homes, it is recommended to prioritize the installation of fresh air systems. If the air quality in the area is not good, the fresh air system can be used with the air purifier to provide you with a more comprehensive and healthy breathing environment.
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