3 ms·

Boy you're quite the contrarian. Congratulations. Did I say 0% effective? Talking about primary use here. You're right, though, that cloth or coffee filter is

Boy you're quite the contrarian. Congratulations. Did I say 0% effective? Talking about primary use here. You're right, though, that cloth or coffee filter is better than nothing.

0xffff2 7y ago
>One protects others (surgical mask), and one protects others AND the wearer (N95). Maybe you didn't mean it that way, but that sure sounds pretty absolute to me.
- chkaloon 7y ago
  From OSHA https://www.youtube.com/watch?v=ovSLAuY8ib8 https://www.youtube.com/watch?v=ovSLAuY8ib8