The difference between surgical masks and disposable masks
"Medical surgical masks" are medical masks commonly used in operating rooms and other environments where there is a risk of body fluids and blood splashing. They can block blood and body fluids from passing through the mask to contaminate the wearer. At the same time, the filtration efficiency of bacteria is more than 70%, but the filtration efficiency of particles Limited, and mostly rectangular design, the adhesion with the face is not as tight as medical protective masks. Common medical surgical masks are strap-on, ear-hook, etc.
Ordinary-grade medical masks have many names. Medical masks without the words "protection" and "surgical" are ordinary-grade medical masks. This level of masks does not require blood blocking or adhesion requirements. Therefore, it is only used for general medical environment. Common common medical masks are mostly ear-hook, and the appearance is similar to ear-hook surgical masks.
The implementation standards of disposable masks and "medical surgical masks" are completely different. The thickness and quality of the filter layer between the two are obviously poor, and the final protective effect is even more different. Medical surgical masks have a total of three layers of filters. Before buying, you can confirm whether there is YY0469-2011 on the packaging. It is the mask we need that meets the YY0469-2011 "Medical Surgical Mask" standard. The ordinary disposable masks are printed with various factory labels of YZB /.
What are the surgical masks in three layers?
The standard surgical mask is divided into three layers: the outer layer is a water blocking layer, which can block splashing liquid; the middle layer is a filtering layer, which can effectively block 0.3-1. steam. Nose clips and ties are also required. A common type of surgical mask is non-woven fabric plus two laces.
How to choose a mask
Common masks on the market can be divided into three categories: medical surgical masks, medical protective masks (N95 masks) and ordinary cotton yarn masks. Among them, medical surgical masks can block 70% of bacteria, N95 masks can block 95% of bacteria, and cotton yarn masks It can only block 36% of bacteria, so it is recommended to choose the first two masks.
If you are going to a public place and are not in contact with the patient, it is sufficient to wear a medical surgical mask. You do not have to overprotect it, but if you touch the patient, you must wear a bio-protective N95 mask.
Notes on wearing masks
1.Wash your hands before wearing a mask.
2.After wearing the mask, try not to touch the mask.
3.If you must touch, remember to wash your hands before and after touching.
4.When removing the mask, try not to touch the outside of the mask. Remember to wash your hands immediately after removing the mask.
5.Try not to reuse disposable medical masks.
6.Once the mask is broken or dirty, a new mask needs to be replaced immediately.
7.Distinguish the inside, outside, top and bottom of the mask; the printed side of the KN95 mask is the outside; the one end of the metal strip / sponge strip is above the mask.
8.Do not squeeze the mask by hand, including the N95 mask, you can only isolate the virus on the surface of the mask. If you squeeze the mask by hand, the virus will wet the mask with the droplets, there is still a chance of infection.