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- Verification of the mask with the real corona virus First in the world | Nittele NEWS24 Nittele NEWS24
- Effect of suppressing the spread of the virus with a mask and reducing inhalation Confirmed by the University of Tokyo, etc. NHK NEWS WEB
- first in the world! Shows that the mask is effective in preventing the new crown (October 22, 2020) ANNnewsCH
- The mask is still effective Todai proves it with a new crown and a live wrist
- [Nuevo virus corona]Certain protective effect with mask The world’s first new crown experiment FNN Prime Online
- See all articles in Google News
