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Japanese researchers say ozone effective in neutralizing coronavirus

13 Comments
By Rocky Swift

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© Thomson Reuters 2020.

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But won't some people (ie certain Americans) complain that they'll have to breathe in ozone instead of carbon dioxide?

2 ( +4 / -2 )

But won't some people (ie certain Americans) complain that they'll have to breathe in ozone instead of carbon dioxide?

That would be "on top" and not "instead" because it does not replace the CO2, in reality those levels are safe, but very easy to detect because ozone has a very pungent smell and many people get sick of it if they are exposed for long time. So even if not dangerous it would not be easy to put in practice either.

Still I would like to see the full report of the experiment. 90% reduction seems like a lot, but for viruses that are present in the billions the reduction may not be that useful, specially because the simple pass of time also deactivates the virus naturally. if, for example, the virus in the controls in the experiments (without any ozone) had a reduction of 70-80% just because the 10 hours of time, then the low level of ozone are not really that useful.

3 ( +4 / -1 )

Promising results, and I hope further research proves it.

In high concentrations, ozone is bad for you, so this has to be controlled. It won't be a problem with the high-level equipment likely to be used in a hospital, but could be with a cheap ozone generator used in a less critical application, say a hotel or AirBnb. Ozone is good at neutralizing smells like cigarette smoke, and is already used by some car valeters and real estate people.

0 ( +0 / -0 )

Ozone is good at neutralizing smells like cigarette smoke, and is already used by some car valeters and real estate people.

The difference is that for neutralizing odor the ozone has to be much more concentrated, so it is used only in spaces without people or other living things that could get damage, and it is ventilated so when people go back to those spaces there is no ozone left.

In this study the intention is to use the low level ozone (0.05-0.1 ppm) while people are still there, the problem is that ozone has a very strong smell that can be detected at even lower concentration levels  (0.01-0.02 ppm), so the people using that space would be constantly under the smell of ozone, which is not dangerous to the health apparently, but it is not easy either.

4 ( +4 / -0 )

Ozone is a lung irritant and the state of California has banned ozone generators that emit more than 0.05 ppm.

0.1 ppm seems a bit high, perhaps it's better to use the system to sterilize the room before people come in or don't stay for long (like hallways)?

0 ( +0 / -0 )

But won't some people (ie certain Americans) complain that they'll have to breathe in ozone instead of carbon dioxide?

I've nothing to add to the discussion I'd just like to clarify that it's oxygen that we breathe in not carbon dioxide.

0 ( +0 / -0 )

"Japanese researchers say ozone effective in neutralizing coronavirus"

I hear vampire blood, and holy water works too.

Seriously, not a day goes by without a claim like this.

-5 ( +0 / -5 )

Seriously, not a day goes by without a claim like this.

A claim like what? This isn't some reality TV star musing about necking drain cleaner or injecting light. This was a controlled experiment.

3 ( +3 / -0 )

A 90% reduction in virus particles over ten hours. I have never had to wait ten hours to see a doctor, thankfully. One is left wondering how useful the ozone would be in the confines of a waiting room. It might be more useful as a disinfectant in a sealed room, where humans are not waiting.

0 ( +0 / -0 )

Good news.

And I wonder how another similar news is going on, which is UV exposure equipment developed by Japanese maker (corroborated with USHIO Inc and TOSHIBA subsidiary ) They have utilized UV to disinfect corona virus. The wavelength is likely to be harmless to human also.

I hope Japan manufactures are going advance to provide such a effective machines to fight against COVID-19

0 ( +0 / -0 )

Just wondering why, if ozone kills Covid-19 as the study asserts, there is any virus left in Southern California? Southern California is plagued by high levels of ozone in its smog. One would think this should help kill Covid-19 viruses in the environment.

0 ( +0 / -0 )

“A claim like what?”

An Oxford team is on the cusp of a cure. No, the Australian team is, no the Russian team is, no the Israelis, no it’s the Chinese.

Then the stuff that Trump is taking is supposed to work.

I’ve spelt it out for you

-3 ( +0 / -3 )

An Oxford team is on the cusp of a cure. No, the Australian team is, no the Russian team is, no the Israelis, no it’s the Chinese.

Then the stuff that Trump is taking is supposed to work.

I’ve spelt it out for you

What on earth are you talking about? Are you implying that only one 'team' of research could have positive results? What 'team' do you want to find the Holy Grail?

Such an odd comment.

2 ( +2 / -0 )

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