Japan has introduced a mask for catering. Do you think this mask is useful? 1. Why did Japan introduce masks for catering?

as we all know, the epidemic prevention situation of new officials in the world is very severe, especially in the United States. In addition, the epidemic situation in Japan has begun to rebound and has increased greatly. Therefore, people in Japan are required to wear masks and wear them when eating. Under such circumstances, various businesses in Japan have introduced masks that can be used when eating, and the types of masks are also various, all in order to make people eat. Second, can this mask really play a protective role?

the principle of this kind of mask is to prevent people from spreading saliva when eating, because people must open their mouths when eating, and once they are close, it is likely to spread. Therefore, this kind of mask can effectively block the saliva sprayed by people when eating, avoid the occurrence of cross-infection incidents, and also make people feel at ease when eating, without having to hide and hide for eating as before. It has greatly facilitated people's lives. It is impossible to say that this kind of mask can play a protective role of 111%, but it can greatly reduce the spread of the epidemic. However, to really prevent the spread of the epidemic, people are still required to go out as little as possible, which is the most practical and effective way. Third, what do you think of this invention?

this invention is actually a product of the times, because in every era, due to specific reasons, there will be some inventions that are in line with the social development at that time. During the epidemic prevention and control period, catering masks were invented to meet the consumption needs of consumers, which can well solve the problem of people's dining under the epidemic prevention and control form, because everyone's life will continue, even if the epidemic situation is serious, some people have to go out to work. If you go out to work, you will face the problem of eating, so you need a good protection when eating, and this mask can protect people from virus infection, so it is a very good invention and worth popularizing.