Working principle of air purifier

23/07/2020
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The air purifier consists of a motor, a fan, an air filter, and other systems. It works as follows: a motor and a fan in the machine circulate the air in the room, after the polluted air passes through the air filter net of the machine, the various pollutants are removed or adsorbed, the air is continuously ionized, producing a large number of negative ions, which are sent out by the micro-fan to form a negative ion air stream, thus achieving the goal of cleaning and purifying the air.

The purification principle of passive adsorption filter (filter net purification) 

The main principle of the passive air purifier is to use a fan to draw air into the machine and filter the air through a built in filter screen, which mainly plays the role of filtering dust, odors, toxic gases and killing some bacteria. But the filter net mainly divides into: the Particle Filter Net and the organic matter filter net. The air purifier are divided into coarse filter and fine filter.

The quality of the fan and filter screen of this kind of products determines the effect of air purification, and the position of the machine and the layout of the room also affect the effect of purification.

Active purification principle (no filter)

The fundamental difference between the active air purifier principle and the passive air purification principle is that the active air purifier is free from the limitations of the fan and filter, instead of passively waiting for the indoor air to be pumped into the purifier for filtration and purification, it effectively and actively releases purifying and sterilizing factors into the air, through which the air will diffuse, to reach every corner of the indoor air for non-corner purification.

On the market, the technologies of purifying and sterilizing factors mainly include silver ion technology, negative ion technology, low temperature plasma technology, photocatalyst technology and net ion group Ion Technology, etc. , the biggest defect of this kind of product is the problem that the amount of ozone releases exceeds the standard.

Double Purification (active purification + passive purification)

The purifier is, in fact, a combination of passive purification technology and active purification technology.