Because medical masks generally need to be sterile, ethylene oxide sterilization is required in order to achieve sterility standards.
The N95 respirator has a filtration efficiency of more than 95% for particles with an aerodynamic diameter of 0.075µm ± 0.02µm. The aerodynamic diameter of airborne bacteria and fungal spores mainly varies between 0.7-10µm, which is also within the protection range of N95 respirator.(China N95 respirator)
N95 Respirator is one of the 9 kinds of particulate protection masks certified by NIOSH. "N" means not resistant to oil. "95" means that when exposed to a specified number of special test particles（China N95 respirator)
Wearing a mask is also very important. Do you know the correct way to wear a mask? Let me tell you. The following are the steps for wearing a mask...
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 protection.