To explain your diagram it is simple. The virus is like throwing sand through a chain link fence. The sand is the virus and the chain link fence is the mask.
Odd story a couple of years ago. I was in Galveston. I saw a young and healthy lady riding a bicycle down the seawall. She was quite lovely and due to her age was at almost no risk of severe disease if she caught covid. It would be just a cold to her. There was a sea breeze blowing, and she was in bright sunlight (which kills covid) and she was masked. She was a fool.
experts weigh in......................lest see how many lemmings are out there waiting to be controlled again