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It's spring. High pollen season.
CDC and NHS both say 20-ish% of the population has hay fever allergies.
Pollen is big, you don't even need a particularly good mask to stop it.
Think of the tens, maybe hundreds of millions of people, in North America and Europe, who are suffering rather than wearing a mask.
CDC and NHS both say 20-ish% of the population has hay fever allergies.
Pollen is big, you don't even need a particularly good mask to stop it.
Think of the tens, maybe hundreds of millions of people, in North America and Europe, who are suffering rather than wearing a mask.