Birdwatch Note Rating
2023-08-23 13:07:56 UTC - HELPFUL
Rated by Participant: CF8DF61B2410FEAEFFDDF8C88EA2237E2FDF45D7962205416E87CE362B42B9AE
Participant Details
Original Note:
There's never a naked virus floating around. Viruses attach to water droplets or aerosols generated by breathing, talking, coughing, etc. These consist of water, mucus protein and other biological material and are all larger than 1 micron. The N95 filter is around 0.3 micron https://www.usatoday.com/story/news/factcheck/2020/06/11/fact-check-n-95-filters-not-too-large-stop-covid-19-particles/5343537002/
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