DWQA Questions › Tag: KN95 masksFilter:AllOpenResolvedClosedUnansweredSort byViewsAnswersVotesI asked you recently to comment on overall effectiveness of KN95 masks in preventing COVID-19 spread. Are N95 masks significantly better, and more effective than the current data from scientific studies actually show?ClosedNicola asked 3 years ago • Coronavirus COVID-19221 views0 answers0 votes
Nicola