As the epidemic prevention and control enters the normalization stage, it has become a habit to wear...
From the perspective of color, the darker side is generally the front of the mask, that is, the side...
Also known as N95 respirator, a kind of respiratory protective equipment, which can effectively filt...
The “Guidelines for Wearing Masks in the Public Science” have clearly stated that disposable medical...
Wu Haojie, a nurse in the emergency department of the Chongqing Emergency Medical Center, said that ...
Different standards and certification requirements apply to medical masks in different countries/reg...