What type of face mask do you wear?
None, scientific evidence on ineffectiveness is available before and after Covid19. On my recent timeline you can find some studies.
>"None, scientific evidence on ineffectiveness is available before and after Covid19. On my recent timeline you can find some studies."
I don't see anything there about properly worn N100/P100 elastomeric respirators.
Are you implying that you have scientific evidence of effectiveness of them?
An N100 or P100 is 99.97% efficient per NIOSH.
Are you saying they conducted studies on the effectiveness in preventing spread of infection of coronaviruses like SarsCov2?
I doubt that there is sufficient data to conduct a proper statistical study, being an extremely rare product.
>"I doubt that there is sufficient data to conduct a proper statistical study, being an extremely rare product."
They're not rare at all. It's standard respiratory PPE.
@post
>"Never seen anyone wear that stuff in 3 years."
Well you need to get out more. Oh wait, you can't because there's a pandemic raging...