What is the principle of air purifier?

1, purification principle of passive adsorption filtration (screen purification)

The main principle of passive air purifier is to draw air into the machine through a fan and filter it through the built-in filter screen, which can mainly filter dust, odor and toxic gases and kill some bacteria. The filter screen is mainly divided into particle filter screen and organic filter screen. Particle filters are divided into coarse particle filters and fine particle filters.

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

2. Active purification principle (filter-free type)

The fundamental difference between the principle of active air purifier and the principle of passive air purification lies in that the active air purifier gets rid of the restrictions of fans and filter screens, instead of passively waiting for indoor air to be pumped into the purifier for filtration and purification, it effectively and actively releases the purification and sterilization factors into the air, and reaches every corner of the room through the characteristics of air diffusion, thus purifying the air without dead ends.

The technologies for purifying sterilization factors in the market mainly include silver ion technology, negative ion technology, low temperature plasma technology, photocatalyst technology and clean ion group ion technology. The biggest defect of this kind of products is the problem of excessive ozone release.

3. Double purification (active purification+passive purification)

The essence of this purifier is to combine passive purification technology with active purification technology.

Main items of air purifier

Rapid purification: At the initial stage of operation, it is recommended to run the air purifier at the maximum air volume for at least 30 minutes, and then switch to other gears to achieve the effect of rapid air purification.

Purification of pollution: When using air purifier to remove outdoor air pollutants, it is recommended to keep doors and windows in a relatively sealed state as far as possible to avoid the reduction of purification effect caused by a large number of interactive circulation of indoor and outdoor air. After long-term use, pay attention to regular ventilation.

Decoration purification: if used to purify indoor gaseous pollution (such as formaldehyde, benzene, etc. ) decoration, it is recommended to use it after effective ventilation.

Guarantee effect: replace or clean the filter screen regularly to ensure the purification effect of the air purifier and avoid the secondary discharge of pollutants adsorbed by the invalid filter screen.

Long-term non-use: Before the air purifier that has not been used for a long time is turned on again, the cleanliness of the inner wall and the state of the filter screen should be checked, and the corresponding cleaning work should be done, and the filter screen should be replaced if necessary.