The difference between ordinary medical masks and surgical masks is mainly from material and protection.
But wearing a mask and frequent hand washing must be done at the same time, both are indispensable.
First of all, the words "medical surgical mask" must be written on the outside of the package.
A sudden epidemic has made masks a necessity, and the quality of masks has also become a hot spot of public concern. What testing does a qualified mask need?
At the moment when urban life is gradually recovering, everyone still needs to pay attention to wearing masks. While performing key group management, employee health monitoring, information registration, publicity and education, etc., how to do daily office work, outgoing duties, and street purchases Protection?
Students in elementary and middle schools in most parts of Canada have started to go to school. This is the first time students have stepped onto campus since the pneumonia epidemic has raged in half a year. However, the students and teachers came back wearing masks. What kind of mask to wear, how to wear a mask, and how long a mask can last have become the concerns of parents of students with underage children.