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...
N95 Respirator is one of the 9 kinds of particulate protection masks certified by NIOSH. "N" means n...
Wearing a mask is also very important. Do you know the correct way to wear a mask? Let me tell you. ...
Face masks have a certain filtering effect on the air entering the lungs.
The difference between ordinary medical masks and surgical masks is mainly from material and protect...