Views:2 Author:Site Editor Publish Time: 2021-01-29 Origin:Site
Japanese researchers say ozone is effective in killing coronavirus
Low levels of ozone can kill coronavirus particles, potentially providing a way for hospitals to disinfect screening rooms and waiting areas, Japanese researchers said Wednesday.
Scientists at Fujita Health University said in a press release that they have demonstrated that ozone gases with concentrations of 0.05 to 0.1 millionths (ppm) kill the virus and are considered harmless to humans.
The experiment used an ozone generator in a sealed chamber with a coronavirus sample. After 10 hours of low concentrations of ozone, the effectiveness of the virus decreased by more than 90%.
Lead researcher Takayuki Murata said: "Even in a human-only environment, the use of this system, sustained low-concentration ozone treatment may reduce the spread of new coronavirus."
"We found it particularly effective in high humidity conditions."
Ozone is known to be an oxygen molecule that inactivates many pathogens, and previous experiments have shown that high concentrations of ozone of 1-6 ppm are effective against coronavirus but potentially toxic to humans.
A recent study by the Georgia Institute of Technology showed that ozone can effectively disinfect pajamas, goggles and other medical protective equipment.
The Fujita Medical University Hospital in Aichi Prefecture, central Japan, has installed ozone generators to reduce infections in waiting areas and wards.