Air purifier

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 the role of 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.

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 and then discharged 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.

Comparison of the two purifier principles

        Comparison of air purification efficiency. Passive adsorption purifier adopts fan + filter mode to purify air. The principle of using air flow alone will inevitably lead to blind spots. Therefore, most passive air purifiers can only place a small space in the air purifier to produce a certain amount of space. The purifying effect can only be filtered through indoor air once it has passed for a long time.

        Active air purifiers use diffuse air characteristics to spread the purification factor to every corner to purify the air, so that the air can be diffused to the place where it can be purified. Anion air purifiers were compared to find that, after releasing negative ions in the air, negative ions can take the initiative to attack, find pollution particles in the air, and agglomerate and actively settle them. From this point alone, active air purification has obvious advantages.