Medical surgical masks are divided into three layers: the outer layer is a water-blocking layer (ant...
The production of medical masks also has requirements for the production environment.
Face masks that have not been unpacked can still be used. In fact, as long as the surgical mask, med...
China was the first in the world to use masks. In ancient times, people in the court began to cover ...
Because medical masks generally need to be sterile, ethylene oxide sterilization is required in orde...
The N95 respirator has a filtration efficiency of more than 95% for particles with an aerodynamic di...
