Mask filter material introduction

July 10, 2021
KN95 mask layers

For a good protective mask filter material, it should have the following three conditions.


First, high filtration efficiency in the case of a good fit between the mask and the user's face.


Second, the breathing resistance is small.


Third, the user feels comfortable. There are a variety of materials for dust-proof masks filter media, including ordinary fabric, animal hair, non-woven fabric, etc.. Very popular in the national standard is an activated carbon felt material.

The structure of the gauze mask is poorly fitted with the human face, and many fine particles that are very harmful to us will enter the respiratory tract to the lungs through the gap between the mask and the face, and its filter material is generally more mechanical fabric, and the only way for this filter material to achieve high dust-blocking efficiency is to increase the thickness, and the negative effect of increasing the thickness is to make the user feel great breathing resistance and feel uncomfortable. The electrostatic treatment of the non-woven fabric can not only block large dust particles, but also attached to its surface electrostatic charge can be through the electrostatic gravitational force of fine dust adsorption, to achieve a high dust-blocking efficiency. The thickness of the filter media is very thin, which greatly reduces the user's breathing resistance and comfort, thus achieving the three necessary conditions for a good filter media as we mentioned earlier. With a good filter media, with the scientific design of the mask structure, it constitutes an efficient and high-quality mask.

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