For the filter material of a good protective mask
The filter materials for protective masks are mainly divided into two categories, namely dust-proof and anti-virus. Their role is to absorb harmful aerosols, including dust, smoke, mist, toxic gas and toxic vapor, etc. through the filter material, blocking it from being inhaled by people.
For the filter material of a good protective mask, the following three conditions should be met. First, the filter efficiency is high when the mask is close to the user's face, second, the respiratory resistance is small, and third, the user feels comfortable. There are many kinds of materials for dust-proof masks, including ordinary fabric, animal hair, non-woven fabric, etc. At present, a very popular non-woven material in the national standard is a synthetic, electrostatically treated material. Why use electrostatic treatment for NONWOVEN face mask?
The structure of the gauze mask is very inadequate to the human face. Many fine particles that are extremely harmful to us will enter the respiratory tract to the lungs through the gap between the mask and the face. Its filter material is usually some mechanical fabric. It is expected that to achieve high dust suppression efficiency, the method is to increase the thickness, and the negative effect of increasing the thickness is to make the user feel that the breathing resistance is very large and feels uncomfortable. The non-woven fabric after electrostatic treatment can not only block large dust particles, but also the electrostatic charge attached to its surface can attract fine dust by electrostatic attraction, achieving a high dust suppression efficiency. The thickness of the filter material is very thin, which greatly reduces the user's breathing resistance and feels comfortable, thus achieving the three necessary conditions of the good filter material we mentioned earlier. With good filter material and scientifically designed mask structure, a high-efficiency and high-quality mask is formed, which can make you feel convenient and comfortable to use, and can really protect your health.