Excellent thread. Also protects from flu and other airbornes.
Note always in elevator. I know of two people infected in them. And they were empty of people but not the virus!
<p>
https://nitter.cz/RajeevJayadevan/status/1741720285362196616#m
</p>

🐦🔗: https://nitter.cz/NChildersMEP/status/1741790372412395735#m

[2024-01-01 11:56 UTC]