Face coverings mask lack of a real solution
To the editor:
I cooperate with the idea of wearing face masks.
However, considering how they are constructed and used, I intuitively strongly suspect that their utility is much more a wish and a hope than an actual fact!!!
I have found no verifiable experimental evidence illustrating an actually sufficient capture and retention of infectious droplets by existing models of masks. In fact, some versions are no longer recommended.
I feel that the finding of utility is founded too much on inference than direct evidence.
There may be a better way.. The experts need to do more work NOW !!!