Dodgers cloth Face Mask. Cho Ray doctor instructs how to wear a standard medical mask to prevent corona virus
4 types of masks and usage principles
According to the Ministry of Health, there are 4 types of masks, including: N95 medical mask or equivalent; medical masks; antibacterial drops, anti-bacterial masks (called masks 870 for short); 3, 4-layer masks (not eligible for medical equipment), other regular cloth masks.