[nota]

byron

the smell is from very small light molecules CH4 ATOMIC WEIGHT 16
vs a virus atomic weight a few MILLION OR MORE

so yes they are very different in size

https://www.drugtargetreview.com/news/56325/researchers-map-vital-atomic-scale-protein-on-covid-19/

https://www.forbes.com/sites/jamesconca/2020/04/14/scientist-takes-magnetic-aim-at-the-coronavirus-at-the-pacific-northwest-national-laboratory/?sh=6ca6c2745bc3