In the function of preventing airborne bacteria, face masks have undergone three important stages of development: 1st Generation Gauze mask , 2nd Generation Melt-blown fabric mask, 3rd reusable nano microporous filter-film mask.
Made from gauze material. The large aperture can only intercept large particles in the air but can’t block PM2.5, the protection effect is limited, the wearing feel is not comfortable, so it is an outdated product.
.png)
Made from non-woven fabric. The aperture size can intercept the middle to large particles in the air and absorb the dust by the electrostatic effect. It is the mainstream mask at present. (However, the filtration efficiency will be significantly reduced after a few hours due to vapor condensation. The type of mask cannot be washed or disinfected.)
%20-%20%E5%89%AF%E6%9C%AC.png)
Made from the technological microporous film. The aperture size is tiny. Utilizing the physical principles to filter particles in the air,the type of face mask,represents the development direction of future protection. (This new filter-film can be gently washed and disinfected, it is non-disposable in usage.)
.png)
.png)
.png)
.png)
We have developed a new generation of filter materials that can be used as masks, expended polytetrafluoroethylene ,as known as ePTFE, which is a high over-rate and low-resistance microporous film. The film has good chemical stability, can withstand high-temperature boiling water, 75% alcohol and 84 disinfectant and other disinfection, filtration efficiency remains high.