>that's a biosafety level 3 or 4 facility As dramatic as that sounds, you can get commercial and home aircons that will filter at the level to kill or remove vi

>that's a biosafety level 3 or 4 facility As dramatic as that sounds, you can get commercial and home aircons that will filter at the level to kill or remove viruses. Though for COVID-19 you would want something that can filter at 0.125 micron as that is the size of this virus.