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At present, the concept of the fresh air system is actually biased. The household fresh air system, simply understood, is two fans, one inlet and one exhaust, in view of the current air quality, so the air purification module is installed. Now what we all call the fresh air system, strictly speaking, it is called the fresh air purification and energy-saving (heat exchange) system, and the fresh air ventilation technology is not much to say, and it is very mature, which is nothing more than the advantages and disadvantages of the fan.
Heat exchange is also an old technology, including paper, aluminum foil, composite materials (resin synthesis), copper foil, etc. The focus is on purification technology, and the mainstream is two: physical interception filter technology and electrostatic adsorption technology, but they are both old technologies, but they have adapted to the needs of the current home.
These two technologies are very inefficient at filtering microorganisms, because they are intercepted or adsorbed, which will cause the accumulation of polluting particles and form a breeding ground for the growth of bacteria and viruses. At present, most of the bacteria and viruses on the market are transplanted with the functional modules of traditional sterilization and disinfection machines. At present, the pure air purification technology can filter bacteria and viruses, only Finland Yawei's ion waterfall technology, which is also the most advanced air purification technology at present, its filtration capacity reaches.
So when choosing, don't be fooled by the concept of merchants.
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The filtration system of the fresh air system is actually similar to that of the air purifier, and the filtration level of different brands and models is also very different. However, the filtered particles are generally dust, such as solid particles, such as bacteria and microorganisms, which need to be equipped with anti-virus elements, which are not as good as photocatalyst sterilizers. Because the fresh air system is a new category, there is no fixed industry specification in the market, and the selection of the fresh air system should be considered from a practical point of view and from all angles.
Hope it helps!
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As we all know, the fresh air system as a new product that can improve indoor air quality, in this environment, has been developed at a high speed, naturally, there are some brands that fish in troubled waters, not only can not improve indoor air quality, but also will be outdoor haze, a brain into the indoor, which not only does not play a role in improving the indoor environment but also will cause secondary pollution of indoor air!
The reason is that the filtration system of many fresh air systems is not perfect, so it will cause secondary air pollution when the indoor and outdoor air is replaced. In order to solve this problem of mold chain, the German Northumberberg fresh air system is equipped with its powerful air purification system, and its high-efficiency filter is the core HEPA-U filter, which is a medical-grade filter, which has a removal rate of more than particulate matter, and the German Northumberberg fresh air system uses multiple filtration and purification technologies to ensure that nothing goes wrong.
In addition, the German Norsenberg fresh air system also has a strong celery full heat exchange system, a kind of outdoor fresh air filtered, purified, through full heat exchange treatment and sent indoors, and at the same time the indoor polluted harmful gases are superheated exchange treatment and discharged outdoor, and the indoor Wendan Shousun degree is basically not affected by a kind of high-efficiency and energy-saving equipment, which can ensure that it is not cold in winter and not hot in summer!
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Bacteria partly, viruses can't. Regardless of the physical structure of the filter, it is impossible to filter viruses.
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