[solinent]

It sounds like it's saying "ozone kills the tougher bacteria than Covid at a very high rate".

So directly it says absolutely nothing about Covid but implicitly it does seem to state that it should also kill Covid since it's less tough to kill than the vegetative bacteria. I guess they can't make that statement directly--there's no evidence related to Covid here. I'd ignore it.

[im3w1l]

But why are they making this proxy argument, why not test with covid directly? Makes me think they did test with covid and it wasn't working.

[solinent]

Maybe the mechanism of death is similar so if it kills a more difficult strain the same mechanism will kill the "easier strain". It doesn't directly state it though, I think it's just speculation. It doesn't belong in a science paper except maybe in a speculative section about the future I guess.