The COVID-19 conversation should have begun with minimum viable particle size under pressure, which for SARS-CoV-2-size particulates is .06 microns. This particle is under 0.3 microns, placing it firmly within the radically behaving particulate range. A single particle cluster can be composed of multiple virions and still fall well under that threshold. Furthermore, current research on aerosol behavior shows that particulates as large as 5 microns can remain aloft for extended periods. 83 COVID-19-size particles can fit in a single cluster and fall within the highest range.
The conversational pivot should have then become about respiratory emission particle size ranges: Around 90% of exhaled particulates have been shown to fall under .3 microns.
But most importantly, SARS-Cov-2 is understood to be a low-minimum-infective dose pathogen.