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FastLifeHacks health blog:
“N95 vs KN95 vs FFP masks for Coronavirus – what’s the difference?”
The Guardian:
“Coronavirus – What kind of face mask gives the best protection against Covid-19?” https://www.theguardian.com/world/2020/jun/21/coronavirus-wha
Science Daily:
“Face masks critical in preventing spread of Covid-19” https://www.sciencedaily.com/releases/2020/06/200612172200.htm A study has found that wearing a
Science Focus Magazine:
“Face mask use needed to ‘prevent Covid-19 second wave’” https://www.sciencefocus.com/news/face-mask-use-needed-to-prevent-covid-19-second-wave/ Accor
Healthline health information site:
“What Is the Best Type of Face Mask for You?” https://www.healthline.com/health/best-face-mask-2 We learn here that health agencies including CDC now