What is the correct way to take off and put on a mask when doing nucleic acid testing and sampling?

When wearing a mask, distinguish the front and back sides and the top and bottom. Remember to tighten the nose clip after wearing it. What is the correct way to take off and put on a mask?

Wash your hands before wearing a mask, or avoid touching the inside of the mask while wearing it. It is necessary to distinguish the inside, outside, top and bottom of the mask. The light-colored one is on the inside, which should be close to the mouth and nose, and the dark-colored one is on the outside, and the end with the metal strip is above the mask. When wearing the mask, fully unfold the folded face, completely wrap the mouth, nose, and jaws, and then press the nose clip to make the mask fit the face completely. Masks should be replaced regularly and should be used for 2-4 hours at most. After use, masks for the general population should be disposed of as domestic waste and avoid recycling. You must wash your hands before taking off your mask.

Many people take off their masks and throw them away when they get home. This is not safe. The correct approach is to wash your hands repeatedly with soap after returning home. Then hook the mask strap behind your ears with your fingers and take it off. Do not throw away the mask, fold it in half, put it in a sealed bag or plastic bag and tie it tightly, then throw it into the trash can. After throwing away the mask, wash your hands with soap. When taking off the mask, do not touch the outside of the mask with your hands, let alone your mouth and nose. Some people think it is a pity to wear a mask once and then throw it away, so they fold it up and put it in their pocket and wear it next time they go out. This is wrong. This is because when we wear a mask, the saliva and breath in the mouth tend to wet the mask, and the outside of the mask is contaminated with some bacteria and viruses. Folding the mask will contaminate the inside of the mask. Therefore, if you reuse the same mask, the probability of virus and bacterial invasion will increase, so it is best not to reuse the mask. When using a mask, be sure not to touch the outside of the mask with your hands.

Some people are used to touching the outside of the mask with their hands when taking off the mask. In this way, their hands will be contaminated by bacteria, and the outside is the most seriously polluted place. Therefore, you must pay attention to these issues when taking off the mask. If we don't pay attention to our hands, we can easily be infected with viruses and bacteria, and we can easily put ourselves at risk of virus infection.

(The picture comes from the Internet, if there is any infringement, please contact the author to delete it)