[Owen]

No. I said moisture for a reason, not water.

The virus transport is generally aerosol. Size will be micron+. Micron is 10^-6 meters. Nanometer is 10^-9.

This is not rocket science. The mask stops some particles. If it did not they would never be worn by docs in hospitals.

[jpsb]

What you said was they are always attached to some moisture molecule — and those are larger than the aperture.

moisture molecule

And you are wrong. A molecule is much smaller then a virus. Bye.