In fact, there are not so many types of masks in hospitals, generally only disposable medical masks,...
Here, the editor will teach you several ways to distinguish, let's learn together: how to distinguis...
Most N95 masks are also consumables.
However, public health officials continue to emphasize that N95 masks and surgical masks should be r...
With the outbreak of new coronary pneumonia in the world, many countries attach great importance to ...
Door-to-door pickup has become a new way for countries to protect mask supplies.