Viruses are not bacteria
And as I'm inclined to think, they can be killed with ultraviolet and ozone. That's essentially one of the reasons why open places with a lot of sunshine are relatively safe. Regardless, this is a kind of field hospital where everyone is considered infected. They could run tests before admission, and even if some people free of coronavirus get admitted by mistake, this won't make things particularly worse than they would be without these hospitals
I am not that knowledgeable about this, but as far as I know both ultraviolet and ozone are harmful to the human body
Ozone is just another form of oxygen
It is less stable and disintegrate into more stable form (with which we breathe) and atomic oxygen which is highly reactive. And it is the latter that kills small viruses and other pathogens. Ultraviolet does the same, and that's why direct exposure to sunlight also kills microorganisms. Indeed, no one is going to use ultraviolet on people but it will be enough to sterilize the air and exposed surfaces