How is the mask made?

1. Melt-blown is also the most commonly used mask filter material on the market at present.

Its working principle is to filter particles by the size of the gap between melt blowing.

2. Electrostatic cotton absorbs tiny particles through electrostatic adsorption, thus achieving the filtering effect. The disadvantage is that static electricity decays faster.

3.hepa filter material, hepa is a high-power filter material in the world at present. Hepa is made of very fine fibers, with small pore size, strong ability to capture particles, large adsorption capacity, high purification efficiency and too great resistance.

4. Nanofiber is a new material that researchers at home and abroad have been studying, with good filtration effect, large resistance and difficult control of processing links.

5. Graphene filter material is called black gold, which is said to have been used in masks. Due to the price and processing performance, this material is relatively rare in the market.

6.ptfe fiber and membrane filtration material have good filtration effect and large resistance, and membrane filtration materials have been widely used in industrial dust removal, precision filtration and many other fields.

7. Photocatalyst

Photocatalyst is a kind of optical semiconductor material with photocatalytic function, represented by nano-titanium dioxide. It is coated on the surface of the substrate and has a strong catalytic degradation function under the action of ultraviolet rays: it can effectively degrade toxic and harmful gases in the air; Can effectively kill a variety of bacteria, and can decompose and harmlessly treat toxins released by bacteria or fungi; At the same time, it also has the functions of in addition to formaldehyde, deodorization, pollution prevention and air purification.

8. Activated carbon is mainly used to filter formaldehyde odor.