/u/Jimbuub's posts in /r/askscience

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If I’ve worn a KN95 mask in public throughout the pandemic and since masks don’t 100% filter out Covid particles, is it possible I’ve “vaccinated” myself over these 2 years now via the very small Covid particles I’ve inhaled sort of like as if I had a nasal vaccine?

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During that short period during Covid the air cleared up due to no industry and earth got a break. Now it’s like global warming accelerated…why?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If I’ve worn a KN95 mask in public throughout the pandemic and since masks don’t 100% filter out Covid particles, is it possible I’ve “vaccinated” myself over these 2 years now via the very small Covid particles I’ve inhaled sort of like as if I had a nasal vaccine?	1
During that short period during Covid the air cleared up due to no industry and earth got a break. Now it’s like global warming accelerated…why?	1