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lot safer. there are plenty of versions of the ffp3 masks, all doing a good job of filtering out anything hazardous in the air. a similarstandard is expected on covid wards in america. research is hearsay we should do the same. america. research is hearsay we should do the same. there was a 47 times higher should do the same. there was a 47 times higher risk should do the same. there was a 47 times higher risk of should do the same. there was a 47 times higher risk of getting i 47 times higher risk of getting coronavirus infections if you work on a red ward rather than a greenwood while everyone was wearing surgical masks. however, the ffp3 mask provided up however, the ffp3 mask provided up to 100% protection against coronavirus infection. bill up to 10096 protection against coronavirus infection.- coronavirus infection. all the way through coronavirus infection. all the way through the coronavirus infection. all the way through the pandemic, i coronavirus infection. all th

Covid wards in americaFfp3 maskSame americaFred wardBill up to 10096 protection against coronavirus infectionBbc news