China was the first in the world to use masks. In ancient times, people in the court began to cover their mouths and noses with silk scarves in order to prevent dust and breath pollution.
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.
