Recently, everyone is very concerned about the mask problem, and N95 is also out of stock. Before the different masks, which one is higher or lower?

Are the masks for preventing smog and viruses the same?

At present, there are three main types of medical masks in China: medical protective masks, medical surgical masks and disposable medical masks.

The filtration efficiency of non-oily particles above 0.3 microns can reach more than 95%, which is what we call the N95 level. Good adhesion, can filter the particles in the air, block pollutants such as droplets, blood, body fluids, secretions.

Common shapes are arch and butterfly, the point is that N95 masks are disposable masks! It is generally recommended to replace it within 4-6 hours.

Medical surgical masks have the second most protective power. They are commonly used in operating rooms and other environments where there is a risk of bodily fluids and blood splashes. The filtration efficiency of bacteria is more than 95%, but the filtration efficiency of particles is limited.

When the N95 is out of stock, you can choose a medical surgical mask for protection. These masks are mostly rectangular in design, with a general fit to the face, with straps, ear hooks, etc.

In addition to considering the protection level, good filter materials, good shape and nose clip design are also important. The better the face protection, the better. So when wearing a mask, wash your hands first, buckle up, tighten the bridge of the nose, and close it.

Finally, the appropriate level of masks should be selected according to the type and risk of pollutants, not too high or too low. Although the protective effect of medical protective masks with high protection level is better, due to the high filter grade, good adhesion, and higher respiratory resistance, long-term wearing will increase the respiratory burden and cause discomfort such as difficulty in breathing. I wish you all a healthy and safe Spring Festival, and we will see you next time!