Air filter QUQ

The working principle of the air filter is to filter out particles, dust, pollen, bacteria and other impurities in the air through the filter to keep the air clean. 

The specific principles are as follows:

1. Filtration: There are multiple layers of filters inside the air filter, the main filter of which is a high-efficiency filter. As the air passes through the filter, larger particles and dust are intercepted by the filter, while smaller particles and bacteria are adsorbed by the charges or fibers on the filter.

2. Adsorption: In addition to filtration, air filters also use adsorption materials to absorb harmful gases in the air. Common adsorption materials include activated carbon, which has a large specific surface area and pore structure and can adsorb harmful gases in the air, such as formaldehyde, benzene, sulfur dioxide, etc.

3. Sterilization: Some high-end air filters also have a sterilization function. They can kill bacteria, viruses and other microorganisms in the air through ultraviolet rays or other sterilization technologies.

In summary, air filters remove particles, harmful gases and microorganisms from the air through filtration, adsorption and sterilization, providing clean and healthy indoor air. 

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