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15:54
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Originally posted by niclou:
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If you believe so ram! Plenty of scientific papers now out there, also fyi an N95 mask has between a 70-90% efficacy rate. That said, I believe Dr Spurrier suggested even a cloth homemade one was okay?!?! - think logically. It's best to sometimes ask a simple WHY rather than try and convince oneself of their already pre-programmed mind or mindset; it is Science after all. Also just fyi there was a pretty comprehensive study done on N95 masks relating to pregnant healthcare workers, the findings were quite distressing. Results showed to impede gaseous exchange and imposes an additional workload on the metabolic system, guidance has since been changed - for a developing child, especially early teenage years it is vital that the lungs can work at full capacity.
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Properly fitted and worn, an N95 mask is 95-99% effective. There are different brands with different performance (total air volume, and air flow resistance) properties, the good ones really don't interfere with breathing although it takes a bit of practice (and perhaps instruction in the case of children and new users) to use them properly.
