Categories Uncategorized Coronavirus: Masks: FFP2 etc respirator masks still protect the wearer well below 1 micron Post author By Pete's Library Post date August 19, 2021 No Comments on Coronavirus: Masks: FFP2 etc respirator masks still protect the wearer well below 1 micron twitter.com/adsquires/status/1428328741919502341 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... ← Coronavirus: a month after dropping restrictions how is England doing? → The Afghanistan Papers: Documents reveal U.S. officials knew the war had become unwinnable – Washington Post Leave a comment Cancel reply Δ
Pete's Library 