To prevent influenza, we usually use ordinary absorbent gauze masks or KN95 masks, which must be purchased from legal medical supply stores or manufacturers with health licenses or medical device registration certificates. How to choose KN95 masks?What to do with discarded KN95 masks?How to distingu Read More

Besides the filtering efficiency of the KN95 mask, the density of the mask and face is one of the important factors determining the effect of the mask. Different types of masks have great differences in the suitability for the human face. Therefore, when using KN95 masks, the suitability of the masks should first be tested. When testing the face of the wearer for density, it shall be ensured that the air can enter and exit through the mask when it is close to the face edge. Let us read the following words and get more information about the KN95 mask. Read More

In addition to the filter efficiency of the KN95 mask, the density of the mask and face is one of the important factors determining the effect of the mask. Different types of masks show great differences in their suitability for the human face. Therefore, when using KN95 masks, the suitability of the masks should first be tested. When checking the tightness of the wearer's face, ensure that air can enter and exit through the mask when it is close to the edge of the face. Let's read the following words and get more information about the KN95 mask. Read More

According to professionals, KN95 masks are masks with filtration efficiency (greater than or equal to 95%) for particulate matter in China, and N95 masks are tested (standard) in the United States, but the code names are different. Also, from a particulate filtration perspective, the effect is practically the same. Read More

The face mask has a certain filter effect on the air entering the lungs. If infectious diseases of the respiratory tract are widespread and work in dust and other polluted environments, wearing the mask has a very good effect.What role do different types of face masks play?How do you recognize the d Read More