I think you still need fifty or sixty masks if you start school first, because you need to bring one or two masks every day. In the first few months of school, I basically wear a mask every day. If you wear less masks, you need to buy them outside. You can bring more masks from home, preferably 50 masks first, so you basically don't need to buy any masks when you start school. Generally, most people don't wear masks after a month's study, because even after the school starts, the school now implements closed management, which prevents outsiders from entering and leaving, resulting in less contact with the outside world, so most people don't wear masks after a month's observation period. Actually, it doesn't have much impact, but you will basically use nearly 50 masks this month, so I think it's time to start school.

The main reason for wearing masks after the start of school is that students from all corners of the country may have the opportunity to get sick. Therefore, wearing masks can effectively prevent everyone from being infected. I think it is very good, but our school must also force them to wear masks. Because if this is not the case, in fact, many people will not take a group photo when they go, which will increase the chances of everyone getting sick and is very unfavorable for epidemic prevention and control. Therefore, I think it is necessary for students to wear masks for one month. However, there is no need to prepare too many masks. In fact, there is no need to prepare masks of 100 200, because it is actually cheaper to buy them online now, so if you don't have enough masks, you can buy some online.

To sum up, this is the number of masks that I think is suitable for universities. I think pragmatism is the most appropriate number, because it is just enough for you to use for one month.