The most important thing about head-wearing masks is to pay attention to the way of wearing them In the first step, first hold the outside

Medical masks include disposable medical masks, medical surgical masks, and medical protective masks. The three kinds of medical masks have requirements for microbiological indicators. The

The main differences between sterilized masks and non-sterile masks are the degree of sterilization, microbial indicators and uses, etc. 1. Degree of sterilization The degree