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What are the raw materials for masks?
2-layer mask: non-woven fabric, nose bridge and ear hook. 3-layer mask: non-woven fabric, nose bridge, ear hook and filter paper. Activated carbon mask: non-woven fabric, nose bridge, ear hook, filter paper, activated carbon filter paper.

A good filter material for protective mask should meet the following three conditions: first, the filter efficiency is high when the mask is in good contact with the user's face; Second, the respiratory resistance is low; Third, users feel comfortable. There are many kinds of filter materials for dust masks, including ordinary fabrics, animal hair, non-woven fabrics and so on. An activated carbon felt material is very popular in the national standard.

The structure of the mask is not close to the human face. Many tiny particles harmful to us will enter the respiratory tract and lungs through the gap between the mask and the face. Its filter material is usually some mechanical fabrics. The only way to achieve high dust prevention is to increase the thickness, and the negative effect of increasing the thickness is to make users feel great respiratory resistance and uncomfortable.

After electrostatic treatment, non-woven fabrics can not only block large dust particles, but also adsorb fine dust through electrostatic attraction, thus achieving high dust blocking efficiency. However, the thickness of the filter material is very thin, which greatly reduces the user's breathing resistance and makes him feel comfortable, thus achieving the three necessary conditions for a good filter material mentioned above.

With good filter materials and scientifically designed mask structure, an efficient and high-quality mask is formed.