But the "science" is not proven to be on any side, it's for or against depending on what you want to believe, like cycle helmets!
Obfuscation, is the debate about masks effectiveness (not their supporters) when the threat they are to "protect" me from is today practically not there.
And if you can make a solid case for wearing one today, be prepared to wear one forever. I've already come to terms with wearing one 8 hours a day for my last 3 working years.
Absolutely The WHO have summarised all the leading research on the matter, and continue to review new research and update their advice accordingly. Their current stance is that face coverings or masks offer only a "
very slight" (a direct quote) benefit. Note that they refer to masks or face coverings, not medical grade respirators or military respirators (there is really no such thing as a "surgical mask", only different grades of medical mask that technically become respirators higher up the scale of efficiency). The WHO state that wearing a mask or face covering reduces the chances of the wearer infecting another person by only 3 to 11%, and offer
no protection to the wearer against infection by C19
.
The WHO also state that the wearing of face coverings by undisciplined, untrained personnel may actually increases the chances of cross infection as they handle contaminated face coverings, and bring their hands to their face more frequently in order to fit and remove them.
The only thing that is changing is not the scientific advice, but the frenzy being whipped up by the media and a gullible and scientifically illiterate population believing the guff. If you want definitive advice go the the .gov or WHO websites, and ignore anything that is not from a source with proper scientific provenance.
The name of the game with face coverings is not to protect anyone, as their effect is too slight for that. It is to give the public confidence to get back out to work and to shops and get the economy moving, not as some kind of miraculous force field to save us all.
If anyone is wearing face coverings in the belief that it makes them or those around them safer, then they've already failed.