PTFE membrane material is a new type of filter material with PTFE membrane material as the core. Its fiber diameter is between 100-200 nanometers. It has excellent air permeability and protection performance, and can effectively filter more than 99% of PM0.3 ( 300 nanometers) solid aerosols, the filtration rate of new tubular viruses (100 nanometers in diameter) can reach more than 95%. Compared with traditional melt-blown non-woven masks, which are susceptible to failure due to the influence of temperature and humidity in the environment, and have short use time, PTFE nanofiltration membrane materials have the characteristics of repeated use because they mainly rely on the physical layer to intercept particles; It can be reused for more than 10 times after disinfection by means of water washing and alcohol spraying, which effectively alleviates the current shortage of masks and the difficulty of resuming work.
The masks made of PTFE filter material passed the quality inspection of "Zhejiang Provincial Light Industrial Product Quality Inspection Institute".
