Are we recommended face coverings because they are effective enough to stop transmission when we are already only using substandard manual tracing? Or is it because to recommend effective FFP3 masks costs money to ensure supply and admits earlier failure to prepare & respond?
Is it true that the science doesn& #39;t support the fact that N95 masks significantly reduce risk of transmission of viruses?

Or did the Health & Safety Executive prove this in 2008? https://abs.twimg.com/emoji/v2/... draggable="false" alt="🤔" title="Denkendes Gesicht" aria-label="Emoji: Denkendes Gesicht">
Why have I not seen this 2008 HSE report discussed?
https://www.hse.gov.uk/research/rrhtm/rr619.htm
https://www.hse.gov.uk/research/... href="https://twitter.com/Matthew_Wright">@Matthew_Wright
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