Why do Japanese people like to wear masks?

Japanese people like to wear masks, masks of various styles. Some like a caged palm just up and down the buckle in the nose and mouth, as wearing a mask of the little monkey; some are horizontal long strip, after pulling open wrapped around the nose and mouth and a slip of cheeks. There are also large, the recent haze, the company's Japanese executive is even more exaggerated to wear a tightly wrapped large mask, from the eyes of the bottom of the beginning of the two sides of the separation has been to the end of the ear, and the nose and the mouth up and down into a line folded and pressed into the interface, the pressure of the mouth at the increase in a long white cotton, through the texture of the thin mask unusually eye-catching, the company privately discussed that as the women's people some sort of moment to use the sanitary napkin. There are many kinds of masks, and the materials are also different, while the general masks also add a wire at the top to adjust the distance from the nose, which is very useful. As for the Japanese people's preference for wearing masks, it may be related to these factors. About 20% of Japanese people have pollen allergies, especially to cedar pollen. When cedar trees bloom every year, wearing a mask can effectively block allergens, so masks have become a must-have for people with allergies at this time of year. In fact, the number of people who are allergic to not only cedar trees, but also food is increasing year by year, including wheat, soybeans, eggs, various types of seafood, and many nuts have become daily allergic substances, so it is necessary to label Japanese food products with allergenic substances, and how to prevent allergens from mixing with them is necessary. It has also become common to wear masks to prevent allergic reactions to various allergens. On the other hand, not only for allergic reactions, but also if a person has a cold or flu, he or she may actively choose to wear a mask in order to notify the people around him or her. Perhaps the Japanese consider it a matter of courtesy, as being rude is a big deal in Japan, where etiquette is important and should not be taken lightly. On the other hand, wearing a mask greatly reduces the spread of viruses from cold and flu patients, and is indeed a habit worth promoting. However, for the many Japanese or foreigners who come to China, the choice of wearing a mask may be another helplessness, that is, the serious air pollution. Isn't there a disease called Beijing cough? Not only Beijing, China's pollution has actually permeated the motherland, which is not suitable for those who come from developed countries for sure. In fact, if a person lives in a too clean environment, his resistance will be reduced, which will bring about many diseases of the rich and famous, and the same is true for allergies and Beijing Cough. Similar situation even exists in the aspect of food. Some Japanese who came to China for the first time had serious gastroenteritis after eating in China and had to be admitted to the hospital for drip treatment. So think about it, for the Japanese occupation of the Diaoyu Islands in fact there are means, such as the use of pollen bombs to let them allergic to go, or even if the occupation of our mountains and rivers filled with dust and PM2.5 exceeded the standard also forced them to have to roll back to their hometown. Of course Chinese people also wear masks, especially women, but compared to the Japanese, they are much inferior. Chinese masks are more practical, used to protect against the cold, and women use them to protect against UV rays, but the awareness of preventing the inhalation of PM2.5 and the spread of colds is somewhat lacking. The types of masks are also monotonous, in addition to the traditional thick gauze, or cartoon cloth masks of various colors. Comparison of the two countries wear masks or see some cultural and customary differences.