Those surgical masks are made to stop bacteria. Bacteria are hundreds of times bigger than the putative viruses. Anything the size of a "virus", such as an air molecule cluster, will go straight through it.
Conversely, a mask which would stop a "virus" would not let you breathe sufficient air to survive.
In addition, as you can see in a doctorate dissertation from the Technical University, Munich, the wearing of such surgical masks is very damaging to your health. (At present, this rather lengthy and technical document is being translated and a precis will then be prepared.)
Current medical statistics show clearly that there is no epidemic or "pandemic", no unusual numbers of people dying, no unusual numbers of people ill, and tens of thousands of hospital personnel throughout the world complaining of boredom because they have nothing to do.
So what is this masquerade all about?
Is has several purposes:-
1) To stop you seeing people smile – a smile is the antidote to separation and the feeling of loss. When, in the Spring, the sun begins to shines, people go about with smiles upon their faces for joy that the Winter is over: The time of darkness and cold is finished and life begins anew.
2) To make you afraid of other people's breath; other people's words: Only hear what the controlled press tells you; those who have your best interests at heart are "poison" – don't listen to them. Remember, when you talk with someone, the bulk of the information that you receive from them comes from their facial movements, not from the words that they are saying. It is this which helps you recognise who is telling the truth.
3) To reduce your ability to think: As is made plain in the doctoral dissertation mentioned above, wearing surgical masks results in oxygen starvation. This, in turn, means that you can only perceive a small part of the information which you receive.