SPI-B, SPI-M and EMG: Considerations for potential impact of Plan B measures, 13 October 2021 – including FFP2
This paper includes the following quote:
“In terms of both source control and personal protection a face covering manufactured to N95/FFP2 material standards will provide the greatest
benefit relative to other kinds of face covering material providing it is worn to cover the nose and mouth and fits closely to the face.”
