There are not only many kinds of masks on the market now, but also different prices. Let's talk about the classification of masks in detail.
According to the management of medical devices, masks are divided into three categories, and the order of protection level is medical protective masks > surgical masks > medical masks (disposable medical masks), all of which are managed according to two types of medical device products. Ordinary gauze masks, cotton masks and cloth masks are not managed as medical devices.
Masks are mainly classified according to their functions as follows:
1, ordinary mask (non-medical):
Such as cotton masks, activated carbon masks, gauze masks, etc. It can be used to prevent freezing, dust and local smog, but it cannot be used to prevent the spread of bacteria and viruses.
2, ordinary medical masks:
The protective effect on pathogenic microorganisms is not exact, and it can be used for disposable health care in ordinary environment, or for blocking or protecting particles other than pathogenic microorganisms such as pollen. The protection is lower than that of medical surgical masks, and it can also be used by non-intensive people.
3, medical surgical masks:
The protective effect is much better than ordinary ones. It used to be used in hospitals, respiratory departments and surgery, which can prevent the spread of germs and bacteria. It is suitable for the basic protection of medical personnel or related personnel, as well as the protection against blood and body fluids from spreading and splashing during invasive operation.
4、KN95/N95:
N95 is not entirely a medical protective mask, generally including N95 medical protective mask and N95 industrial mask.
Medical protective N95 mask is suitable for medical staff and related staff to protect against airborne respiratory infectious diseases, with high protection level. N95 is the NIOSH dust mask standard in the United States, and the domestic standard is KN95. The detailed parameters are the same as those of domestic KN95.
N95 mask is more reliable in preventing smog, and the main component of smog, pm2.5, is non-oily particles. At the same time, it can prevent the spread of bacteria and viruses, and it is the daily mask with the highest protection level available at present. KN95 and N95 only have different names. The masks produced according to these two standards have exactly the same protection level, and there is no difference in protection effect.
Their protection level is: KN95/N95 mask ≈ medical surgical mask >: ordinary medical mask > ordinary mask.
5, children's masks
Suitable for children aged 6- 14, according to the size of face. Close to the face, high sealing, safe and comfortable.
Children's masks also have national standards, so it is necessary to pay attention to the selection of children's masks that meet the national standard GB/T 38880-2020, and the bacterial filtration efficiency is ≥95%.
? When buying, you must look at the code (realization standard) and don't buy something you don't have?
In some occasions with high risk of virus infection, it is strongly recommended to wear medical protective masks, which are the masks with the highest protection specifications.