Fujian Dongqian Medical Technology Development Co., Ltd.

We mainly develop and produce melt-blown nonwovens, etc. 

BFE90 95 99 PFE90 95 99 three grades of standard filtration efficiency standard germicidal standard melt blown cloth PFE bacterial filtration BFE particle filtration all use Sinopec raw material electret masterbatch production electret machinery use advanced import all reached the international level. 



The mask produced by BFE95-99 melt blown cloth has high filtration efficiency for virus size particles. 



95-99 meltblown cloth to make a high-grade mask is more effective in sterilization. Modern masks no longer use the principle of "sieve". But "active adsorption". The mainstream material is called electret melt-blown electrostatic adsorption material, which has an electric field inside. It can "absorb" particles passing by nearby. To achieve effective sterilization and excretion efficiency. 



This adsorption characteristic is similar to the barrier ability to large particles and small particles. Even when the particles become very small, the filtration capacity will be improved. 



The practical point of view of "filtering viruses". Many people will also take it for granted that the virus is so small that it is useless if the mask is not strong enough to block 0.1 micron particles. This assumption is based on the imagination that a virus can infect people, but this is not the case. In the face of a strong human immune system, viruses also need "corps to fight". Tens of thousands of viruses attack a little at the same time in order to tear a hole in the body's immune system. So the larger the virus particles, the more viruses they carry, the more dangerous they are. But the larger the particles, the more likely they are to be blocked by masks, even very rudimentary masks. The use of high-standard masks can effectively prevent bacterial infection.