The medical standard protective masks have a life span, and the masks are dedicated for special use ...
Medical standard protective masks cannot be cleaned. Spraying disinfectants, including medical alcoh...
Hold the protective mask with one hand, with the nose clip side facing away. Cover the nose, mouth ...
Masks are currently considered to be one of the effective tools to prevent the spread of influenza v...
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...