This has the effect on making the airborn virus molecules heavier and they fall away from their faces and to the floor or a collector plate.
I searched for any research and found this in Sweden https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4477231/#!po=75.0000
Which seems to confirm it works on other viruses anyway.
But I can’t get traction with anybody who could test it out over here.
I think it could save lives... Spain and Italy have lost tons of doctors thru high viral load.
So next steps would be for a virologist or who? to confirm it would have the same effect on covid-19 and then to come up with a safe, cheap design or buy existing but I’m not sure they would be powerful enough. I have emailed the Swedish professor to understand the power of the unit but no response.