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source:Optimization dedicated release time:2022-08-25 Hits: Popular:aromatherapy diffuser direct sales
One is the principle of passive adsorption filtering air purification. Passive air purification is to use a fan to draw air into the machine, and filter the air through the built-in filter, which can mainly play the role of filtering dust, odor, and disinfection. This filter-type air purifier mostly uses HEPA filter + activated carbon filter + photocatalyst (cold catalyst, multi-far catalyst) + ultraviolet sterilization + electrostatic adsorption filter to treat the air.
Among them, the HEPA filter has the function of filtering dust particles, and other activated carbons are mainly used to absorb odors. Therefore, it can be seen that there are various labels such as fan filters, photocatalysts, ultraviolet rays, and static electricity on the market, which seem to be very confusing. The working principle of the air purifier is basically the same, which is passive adsorption and filtering air purification.
The second working principle is the active air purification principle. 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 plasma ion technology in the market. The fundamental difference between the principle of active air purification and the principle of passive air purification is that active air purifiers get rid of the restrictions of fans and filters, instead of passively waiting for indoor air to be drawn into the purifier for filtration and purification, and then It is discharged through the fan, but effectively and actively releases purification and sterilization factors into the air. Through the characteristics of diffuse air, it reaches all corners of the room to purify the air without dead ends.
At present, the technically mature active purification technologies mainly use negative oxygen ions as purification factors to treat air and use ozone as purification factors to treat air. These two are typical air purifiers that work based on the principle of active purification.
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