They strategically left off the efficiency rating of single masks.
If too low, single masking would look pointless.
If too high, double-masking would look pointless.
The “efficiency” referred to is not efficiency in stopping the spread of the Jinping Lung Thing, but in avoiding contact with self-important Karens roving the Wal-Mart aisles looking for somebody to scold.
You don’t want to know how I pull the trigger on the third one…
Let’s just say rule 3 gets pretty interesting.
For Covid Saran wrap is 100% effective.
They strategically left off the efficiency rating of single masks.
If too low, single masking would look pointless.
If too high, double-masking would look pointless.
The “efficiency” referred to is not efficiency in stopping the spread of the Jinping Lung Thing, but in avoiding contact with self-important Karens roving the Wal-Mart aisles looking for somebody to scold.