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FFP3 mask effectiveness at protection

Posted: Sun Nov 07, 2021 4:35 pm
by jimbob
https://www.cam.ac.uk/research/news/upg ... amatically
When Addenbrooke’s Hospital in Cambridge upgraded its face masks for staff working on COVID-19 wards to filtering face piece 3 (FFP3) respirators, it saw a dramatic fall – up to 100% – in hospital-acquired SARS-CoV-2 infections among these staff.

The findings are reported by a team at the University of Cambridge and Cambridge University Hospitals (CUH) NHS Foundation Trust. The research has not yet been peer-reviewed, but is being released early because of the urgent need to share information relating to the pandemic.

Re: FFP3 mask effectiveness at protection

Posted: Sun Nov 07, 2021 5:13 pm
by shpalman
jimbob wrote:
Sun Nov 07, 2021 4:35 pm
https://www.cam.ac.uk/research/news/upg ... amatically
When Addenbrooke’s Hospital in Cambridge upgraded its face masks for staff working on COVID-19 wards to filtering face piece 3 (FFP3) respirators, it saw a dramatic fall – up to 100% – in hospital-acquired SARS-CoV-2 infections among these staff.

The findings are reported by a team at the University of Cambridge and Cambridge University Hospitals (CUH) NHS Foundation Trust. The research has not yet been peer-reviewed, but is being released early because of the urgent need to share information relating to the pandemic.
"early"

(ETA it's from June 2021)

Re: FFP3 mask effectiveness at protection

Posted: Sun Nov 07, 2021 9:23 pm
by WFJ
Why were staff working on COVID wards only wearing surgical masks in the first place?