1

KN95 mask:

The KN95 mask is actually a mask that meets the requirements of China's GB2626 standard. GB means the national standard. The standard is the filtration efficiency of non-oily particulate matter ≥95%.

2

N95 mask:

N95 masks are NIOSH certified by the United States, and the standard is also the filtration efficiency of non-oily particulate matter ≥95%.

3

KN95 and N95 masks need to be worn correctly:

Before wearing the KN95 and N95 masks, you need to wash your hands before wearing them. The light color is inside, and the metal strip is on the top. Don't wear it wrong, it will not protect you.

4

Time to change the mask:

If you use KN95 or N95 masks normally, you can choose to replace one within 4 hours. Don't change it for too long, because if it is too long, the mask will lose its function.

5

Special circumstances require timely replacement:

In some special cases, it can not be worn for a long time. 1. Breathing is difficult. 2. The mask is damaged. 3. The mask is contaminated. 4. There is odor in the mask. 5. The mask and face can no longer fit. These situations require timely replacement.