Children's mask
The size of the model is divided into two recommended specifications for older children and children, which are 14.0cm×9.0cm and 12.0cm×7.0cm respectively.
The standard index takes into account the child's physiological condition and protects his respiratory system. The ventilation resistance of children's masks is set at ≤30 Pa (Pa).
The patterns and colors of the outer layer of the appearance mask are more diversified, mainly to increase the attractiveness of children.
Adult mask
Model size From the appearance, it is obvious that adult masks are larger than children's masks, generally 17.5cm×9.5cm.
The ventilation resistance of the standard index adult mask is ≤49 Pa (Pa).
Appearance The appearance and color of adult masks are generally relatively simple.