Kevin Drum on Masks

[lsanderson]

Revisiting masks: Here’s how different face coverings perform against COVID-19

Comments

[guppiecat]

The flaw in this analysis is that it assumes that KN95 masks are all the same and they very much are not.

KN95 is a non-audited spec, so some masks are really good and some are not. The KF94 and N95 masks are government-audited and are much more uniform in capabilities. The fact that the KF94 is not on the summary list makes me suspicious of the entire effort.

[arkuat]

Yes, I too would have liked to see more attention paid to comparing the KF94.