Japanese researchers said on Wednesday that low concentrations of ozone can neutralise coronavirus particles, potentially providing a way for ...
FILE PHOTO: Fake blood is seen in test tubes labelled with the coronavirus in this illustration taken March 17, 2020. REUTERS/Dado Ruvic/Illustration/File PhotoTOKYO: Japanese researchers said on Wednesday that low concentrations of ozone can neutralise coronavirus particles, potentially providing a way for hospitals to disinfect examination rooms and waiting areas.
Scientists at Fujita Health University told a news conference they had proven that ozone gas in concentrations of 0.05 to 0.1 parts per million , levels considered harmless to humans, could kill the virus.The experiment used an ozone generator in a sealed chamber with a sample of coronavirus. The potency of the virus declined by more than 90 per cent when subjected to low level ozone for 10 hours.
"Transmission of the novel coronavirus may be reduced by continuous, low-concentration ozone treatment, even in environments where people are present, using this kind of system," said lead researcher Takayuki Murata.Ozone, a type of oxygen molecule, is known to inactivate many pathogens, and previously experiments have shown that high concentrations, between 1-6 ppm, were effective against the coronavirus but potentially toxic to humans.
Fujita Medical University Hospital, in Aichi prefecture central Japan, has installed ozone generators to reduce infection in waiting areas and patient rooms.
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