Researchers Tian Xia and Zijie Lin test a plasma prototype for preventing airborne transmission of porcine reproductive and respiratory syndrome virus at a Michigan pig farm. Robert Coelius/Michigan Engineering, Communications & Marketing

A plasma reactor zaps airborne viruses – and could help slow the spread of infectious diseases

Viruses are small enough to pass through filters, including face masks. Disabling viruses with electrically charged gases could be a better way to curb airborne transmission.

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