re: This face shield is going to have players huffing CO2, the mouthpiece should have

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Cao Lanxiu, professor at Shaanxi University of Chinese Medicine, disagreed with suggestions that Mr Li’s son’s mask might have caused him to suffocate to death due to a lack of oxygen.

Ms Cao told local media: “I don’t think mask-wearing has caused this sudden death.”

She said in the vast majority of cases the mask would not have caused the death and added: “If this student had trouble breathing, he would’ve been conscious of that and wouldn’t have continued to run with the mask on until his heart stopped.”

Ms Cao added however that the only way to conclusive proof how Mr Li’s son died was to agree to an autopsy.

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