What about an active purifier? What is the difference between active and passive purification?

First of all, let's compare the efficiency of air purification. Since most of the air purifiers in the passive adsorption purification mode use the mode of fan + filter for air purification, it is inevitable that there will be dead ends in the flow of air using the air, so most of the passive air purification can only produce a certain purification effect around the air purifier, and it takes a long time to filter all the indoor air, and it is difficult to have an effect on the purification of the entire indoor environment. Active air purification is to use the diffuse characteristics of the air to reach all corners of the air for air purification, and the air can be diffused everywhere to produce a purification effect.

It can take the initiative to find polluting particles in the air, and condense them into a clump to settle them. From this point alone, active air purification has obvious advantages.

The second is to compare the removal effects of small particulate air pollutants. We know that the most harmful air pollutants are fine particulate matter with a diameter of less than a micron (i.e., medically called particulate matter that can enter the lungs). After experimental research, it has been found that for these small particles, the passive purification mode is powerless, and the small particles can easily penetrate the filter, activated carbon and other substances, and re-enter the air to endanger human health.

We compared the AHPCO technology based on the principle of active purification for air purification, which not only can easily remove large particles in the air, but also has a 100% sedimentation removal effect for particles with a diameter smaller than those that are difficult to remove in industry.

Finally, a comparative analysis of the quality of air treatment is carried out. It is found that under the principle of passive air purification, if the aperture of the filter can be small enough, the result of air treatment can only achieve the purpose of purification, that is, only "clean" air can be obtained; The air purifier with AHPCO technology is different, which can not only effectively remove particulate pollutants in the air, decompose harmful gases such as formaldehyde, and provide clean air to the indoor environment, but also provide air anion that has an efficient effect on human health care to the indoor environment, so that the indoor air quality can reach the standard of "healthy air".

Active air purification technology relies on proactive attack and rapid response to effectively purify pollutants at the moment of diffusion. In other words, harmful substances in the air can be removed before they come into contact with the human body. The biggest feature of active technology is that there is no filter screen in traditional filtration technology, so it can eliminate the problem of secondary pollution caused by residual harmful substances.

Because it is active, actively looking for pollution and actively eliminating pollution, the purification area of the active air purifier is relatively large, generally 3-5 times that of the passive purifier, no dead angle purification, and no secondary pollution. It is an active natural purification process, the active air purifier gets rid of the limitations of the fan and the filter, not passively waiting for the indoor air to be pumped into the purifier for filtration and purification, and then discharged through the fan, but effectively and actively releases purification and sterilization factors into the air, decomposes the factors in the machine room, and then actively discharges to the outside air to actively capture the harmful substances in the air, and reaches all corners of the room to purify, decompose and oxidize the air without dead ends through the diffuse characteristics of the air. Harmless carbon dioxide and water are formed.

An active purifier can only be of one type, while a passive purifier is in a designated space and has a small range.

Active air purification, active means that the purification liquid penetrates into the pollution source, squeezes out formaldehyde, benzene and other molecules and degrades them into carbon dioxide and water, releases them, and removes pollution from the source.

Passive purification is the adsorption and decomposition of formaldehyde, benzene, etc. in the air, treating the symptoms but not the root cause.

In fact, in the end, it is all a result, the removal of pollutants from the air.

What is not released still exists, and the effective range is limited.

Summary. Water self-purification in a broad sense refers to the process of gradual and natural purification of polluted water bodies and restoration of water quality under physical, chemical and biological actions. Water self-purification in a narrow sense refers to the role of microorganisms in the water body to oxidize and decompose organic pollutants to purify the water body.

Water self-purification can occur in water, such as the dilution and diffusion of pollutants in water and biochemical decomposition in water. Can occur at the interface between water and atmosphere, such as the volatilization of phenols; It can also occur at the interface between water and water bottom, such as the precipitation of pollutants in water, sediment adsorption, and decomposition of pollutants in the substrate.

All kinds of water bodies in nature have a certain self-purification ability, which is determined by the physical and chemical characteristics of water itself, and it is also a precious wealth given to us by nature. If we can scientifically and effectively use the self-purification function of water, we can reduce the pollution degree of water bodies and maximize the benefits of limited water resources, including economic, social and environmental benefits. The self-purification capacity of a water body in a specific area and for a certain period of time is limited.

It is one of the ways to reduce or eliminate water pollution by studying and correctly applying the law of water self-purification, and taking auxiliary measures such as artificial aeration or water diversion and dilution to strengthen the self-purification ability. At the same time, the self-purification capacity of the water body is also a factor when determining the amount of pollutants that are allowed to be discharged into the water body.

What are the purification mechanisms of self-purification?

Water self-purification in a broad sense refers to the process of gradual and natural purification of polluted water bodies and restoration of water quality under physical, chemical and biological actions. Water self-purification in a narrow sense refers to the role of microorganisms in the water body to oxidize and decompose organic pollutants to purify the water body. Water self-purification can occur in water, such as the dilution and diffusion of pollutants in water and biochemical decomposition in water. Can occur at the interface between water and atmosphere, such as the volatilization of phenols; It can also occur at the interface between water and water bottom, such as the precipitation of pollutants in water, sediment adsorption, and decomposition of pollutants in the substrate.

All kinds of water bodies in nature have a certain self-purification ability, which is determined by the physical and chemical characteristics of water itself, and it is also a precious wealth given to us by nature. If we can scientifically and effectively use the self-purification function of water, we can reduce the degree of pollution of water bodies, so that the limited water resources can give full play to the maximum benefits, including economic, social and environmental benefits. The self-purification capacity of a water body in a specific area and for a certain period of time is limited.

It is one of the ways to reduce or eliminate water pollution by studying and correctly applying the law of water self-purification, and taking auxiliary measures such as artificial aeration or water diversion and dilution to strengthen the self-purification ability. At the same time, the self-purification capacity of the water body is also a factor when determining the amount of pollutants that are allowed to be discharged into the water body.

is an important decision-making factor. Water self-purification can be roughly divided into three categories, namely physical purification, chemical purification and biological purification. At the same time, they imitate each other, and they interact with each other and work together.

Active air purification is to use the diffuse characteristics of the air to make the purification factor reach all corners of the air for air purification, and the air can diffuse everywhere can produce a purification effect. Taking the advanced hydration photocatalytic oxidation (AHPCO) technology as an example, after the purification factor is released in the air, the Qiaomo purification factor can take the initiative to attack various pollutants in the air, from physical pollutants inhalable particulate matter (PM10, etc.), to chemical pollutants such as formaldehyde and benzene, and then to biological pollutants including bacteria, molds, and viruses, which either settle, decompose, or directly kill by inspectors, so as to achieve the purpose of purifying the air.

The active air purifier gets rid of the limitations of the fan and the filter, not passively waiting for the indoor air to be pumped into the purifier for filtration and purification, and then discharged through the fan, but effectively and actively releases the purification and sterilization factors into the air, decomposes the factors in the machine room, and then actively discharges to the outside air to actively capture the harmful substances in the air, and through the diffuse characteristics of the air, reaches all corners of the room to purify, decompose and oxidize the air without dead ends, and forms harmless carbon dioxide and water.

There is a chip that measures the substances that are bad for the body such as formaldehyde, benzene, and peculiar smell in the air, and automatically measures and removes it automatically! You can send me a private message for details.

1. Passive adsorption filter, the main principle of passive air purifier is: use a fan to pump air into the machine, filter the air through the built-in filter, which can mainly filter dust, odor, toxic gas and kill some bacteria. The filter is divided into:

Dust collection filter, formaldehyde removal filter, deodorization filter, HEPA filter, etc. Among them, the relatively high cost is the HEPA filter, which has a very obvious effect on filtering particulate matter, and can decompose toxic gases and sterilize, and can inhibit secondary air pollution. The quality of the fan and filter of this type of product determines the effect of air purification, and the location of the machine and the layout of the room will also affect the purification effect.

2. The fundamental difference between the principle of active air purifier and the principle of passive air purification is that the active air purifier gets rid of the limitations of fans and filters, and is not passively waiting for indoor air to be pumped into the purifier for filtration and purification, but effectively and actively releasing purification and sterilization factors into the air, and reaching all corners of the room to purify the air without dead ends through the characteristics of air diffusion. The technologies for purifying and sterilizing factors on the market mainly include silver ion technology, negative ion technology, low-temperature plasma technology, photocatalyst technology and pure ion cluster ion technology.

3. Double purification type (active purification + passive purification Changsen), which combines passive purification technology with active purification technology, which has both a filter screen that can pump in air to adsorb harmful substances, and can actively release purification and sterilization factors. The fundamental difference between the principle of active air purifier and the principle of passive air purification is that the active air purifier gets rid of the limitations of fans and filters, and is not passively waiting for the indoor air to be pumped into the purifier for filtration and purification, but effectively and actively releases purification and slag elimination bacteria into the air, and reaches all corners of the room to purify the air without dead ends through the characteristics of air diffusion.

The fundamental difference between the principle of active air purifier and the principle of passive air purification is that the active air purifier gets rid of the lead restriction system of fans and filters, and is not passively waiting for the indoor air to be pumped into the purifier for filtration and purification, but effectively and actively releasing purification and sterilization factors into the air, and reaching all corners of the room to purify the air without dead ends through the characteristics of air diffusion. The technologies for purifying and sterilizing factors on the market mainly include silver ion technology, negative ion technology, low-temperature plasma technology, photocatalyst technology and pure ion cluster ion technology, etc., and the biggest defect of this type of product is the problem of excessive ozone release. The HEPA filter has the function of filtering dust and inhalable particulate matter, and activated carbon and other substances are mainly used to adsorb toxic and harmful substances such as peculiar smells.

The <> air purifier is mainly composed of a motor, a fan, an air filter and other systems, and its working principle is as follows: the motor and fan in the machine circulate the indoor air, and the polluted air will remove or adsorb various pollutants after passing through the air filter in the machine, and continuously ionize the air, producing a large number of negative ions, which are sent out by the micro fan to form a negative ion airflow to achieve the purpose of cleaning and purifying the air. The main principles of passive adsorption filter (filter purification) are:

The air is pumped into the machine with a fan, and the air is filtered through the built-in filter beam mesh, which can mainly filter dust, odor, toxic gases and kill some bacteria. The filter screen is mainly divided into: particulate filter screen and organic matter filter.

Particulate Filters Air purifiers are further divided into coarse filters and fine particulate filters.

1.Active purification has more products on the market, which has the characteristics of high purification efficiency, fast purification speed and comprehensive purification effect, because the active purification air purifier has mobility, it can not only filter pet hair and dander, but also purify harmful gases in the air, eliminate floating organisms in the air, remove indoor odors, and improve indoor air quality. However, the filter material consumption is large, the frequency of replacement is high, and the noise of the air purifier will increase with the increase of air volume, which will affect the quality of sleep.

2.Passive air purifiers have a low energy consumption and do not require the replacement of filter materials, but this method only purifies the air around the machine and has a small purification area. In addition, if the product design of passive air purifier is unreasonable, it is easy to produce substances such as ozone, resulting in secondary pollution of indoor air.

If you recommend FFU air purifiers in terms of cost performance, purification area and purification efficiency, FFU air purifiers are much more practical than ordinary household air purifiers except for being a bit larger.

Generally, FFU air purifiers** range from 1000 yuan to 3000 yuan. According to the production scale and brand awareness, there are better FFU brand manufacturersqinxnZhongjian purificationWait.