The info is BULLSHIT.
I no way the diameter of COVID-19 is 500 micrometers. You would see it with naked eye.
A lot of rubbish COVID-19 is a disease caused by the
SARS-CoV-2 virus, approx size of 125 nm (nanometer), Influenza virus is about 80 to 120 mµ (nanometer)
Any mask
