In message , at 11:50:29 on Wed, 17
Jun 2020, MissRiaElaine remarked:

Functional..? NONE of the ridiculous things being worn by the public at
large are remotely functional.

In what sense?

In the sense that people have them on for.

Unless you are a medical professional or you have the training to use
the correct mask in the correct way (including disposal) then it isn't
going to be any use.

Once you touch them, then they are contaminated, and so are your hands
and anything you touch.

You are addressing the wrong function. Masks for travellers aren't PPE,
they are to stop coughs and sneezes *BY THE WEARER*, spreading the
disease. Also by the wearer not so easily touching their mouth/nose and
then wiping their snot on the surroundings.

This is, incidentally, why a DIY dust mask with a valve in it is "the
wrong way round". But they are still better than nothing.
--
Roland Perry