Reason: None provided.
Masks will block some fraction of something, 1%, 5%, who knows. Even n95 only blocks 95% of a certain size particle.
233 days ago
4 score
Reason: Original
Masks will block some fraction of something, 1%, 5%, who knows. Even n95 only blocks 95% of a certain size of blocks particle.
233 days ago
1 score