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Active air purifier and passive adsorption filter air purifier principle

Rhyang Electronics Co.,Ltd | Updated: Mar 15, 2018
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Active air purifiers and dual-purification air purifiers on the market generally choose only one active purification technology. At present, there are mainly silver ion purification technology, negative ion technology, low temperature plasma technology, photocatalyst technology and net ion cluster technology. The fundamental difference between the principle of active air purification and the principle of passive air purification is that the active air purifier is free from the limitations of the fan and the filter, and is not passively waiting for the indoor air to be pumped into the purifier for filtration and purification. Exhausted by the fan, it is effective and active to release the sterilizing and sterilizing factor into the air. Through the diffuse characteristics of the air, it reaches all corners of the room to clean the air without dead ends. At present, the active technology in the relatively mature technology is mainly the use of negative oxygen ions as a purification factor to treat air and use ozone as a purification factor to treat air. These two are typical air purifiers that work on the principle of active purification.


Although the types, names, and functions of air purifiers on the market are not the same, there are not many types of purifiers in principle. In principle, air purifiers can be mainly divided into two types, one is the principle of passive adsorption filter air purification. The other is the principle of active air purification.


Active air purifier principle


The principle of active air purification differs from the principle of passive air purification in that the active air purifier is free from the limitations of the fan and the filter, and does not need to wait until the air is pumped in and then filtered through the fan. The effective and active release of sterilizing and sterilizing factors into the air, through the diffuse and diffuse characteristics of the air, reaches all corners of the room to clean the air without dead ends.


Passive adsorption filter air purifier principle


Passive air purifiers are mainly used to draw air into the machine with a fan, and then filter the air through the built-in filter, which can play a role in filtering dust, odor, disinfection, and so on. Filter-type air purifiers use HEPA filter + activated carbon filter + photocatalyst (cold catalyst, far-reaching catalyst) + UV disinfection + electrostatic adsorption filter to treat air. The HEPA filter has the function of filtering dust particles, and activated carbon and other substances mainly absorb toxic and harmful substances such as odors.


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