When I went to Japan, I found that people in the streets were wearing masks. According to our Chinese thinking, those who wear masks at ordinary times, if they don't have any defects on their faces, they should be blindfolded, or they are afraid of attracting attention. So at that time, I asked jokingly whether there was any influenza outbreak or the sequela of nuclear radiation!
Spunbond nonwovens + melt blown nonwovens + (waterproof layer) + spunbond nonwovens (hot pressed nonwovens)
This mask can effectively avoid the potential patient's blood, body fluid and splashing of harmful chemicals on human body, so it is widely used in hospitals, laboratories, chemical plants and other special places. Because of its economical, cost-effective and other characteristics, it is welcomed by the majority of users.