2 thoughts on “Which industry mask is relatively large?”

  1. Industries with large masks, hospitals, cafeterias, service windows, physical labor work, etc.
    This of the mask of the hospital is very large. The hospital is the most likely to develop new crown patients. Doctors also need to isolate other germs. The mask must prepare; , Increase the possibility of being infected;
    This mask consumption of physical labor should not be underestimated. After all, it is easy to sweat when doing work, which will affect the effect of the mask; Make a mask.

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