Let's do the math. Assume the protection is 90% for each individual interaction....

		nradov on Jan 12, 2022 \| parent \| context \| favorite \| on: Switching to an N95 mask gives a 75x boost in Covi... Let's do the math. Assume the protection is 90% for each individual interaction. After 7 interactions you're down below 50% protection. And people in the real world obviously aren't going to stop interacting.