mask
Three- and five-layer mask with two kinds of surgical mask and medical mask
features:
1. made of polypropylene (PP)
2. non-woven and without plastics
3. Dimensions: mask must be such that the user's nose and mouth to be properly cover
4. high efficiency particle filtration
5. desensitizing
6. Flexible (physical state so that he could breathe easily.)
7. good air permeability.