Do you know that when those situations occur, you should change the mask in time? Let's take a look below:
1. When the respiratory impedance increases significantly;
2. When the mask is damaged or damaged;
3. When the mask is not close to your face;
4. When the mask is contaminated (such as blood stains or droplets, etc.) Related foreign objects);
5. Once applied to individual cases of wards or patient contact (because the mask has been contaminated);
6. If the mask contains activated carbon, if there is an odor in the mask.
In addition, when wearing a mask, you need to pay attention to these points:
1. Wash your hands before wearing a mask, or avoid touching the inside of the mask with your hands while wearing the mask to reduce the possibility of the mask being contaminated.
2. It is necessary to distinguish the inside and outside, top and bottom of the mask. The light side is inward, and it should be attached to your mouth and nose, and the dark side is facing outward; the one end of the metal strip is above the mask.
3. Do not squeeze the mask by hand, including N95 masks, you can only isolate the virus on the surface of your mask. If you squeeze the mask by hand, the virus will wet the mask with the droplets, there is still a certain chance of infection Viral.
4. Make sure that the mask and the face have a good adhesion as much as possible. The simple test method is actually: After putting on the mask, exhale hard, the air cannot leak from the edge of the mask.
