Hacker News new | ask | show | jobs
by Projectiboga 821 days ago
94 and 95 masks and true Hepa filters are the best methods vs COVID. Hepa helps a lot against all respiratory viruses to slow spread in families, workplaces and communal spaces.
1 comments
reaperman 820 days ago
What are "94 masks"?
link
abracadaniel 820 days ago
KF94 from Korea.
link