The main route of transmission of the new coronavirus is the spread of respiratory droplets. In prot...
While N95 masks were purchased and used in large quantities, how to deal with them after use became ...
Whether the mask can be used again after cleaning can not be generalized, mainly related to factors ...
Medical masks are mostly made of one or more layers of non-woven fabrics.
Medical masks can be divided into: medical protective masks, medical surgical masks, ordinary medica...
N95 masks are tightly protected, but there will be a clear sense of sulking after wearing for a long...