I know you said "starts at" but it's really more like 60-100nm, so quite a bit less than that.
It's a basketball through a hula hoop built for a small giant, though really its like trying to throw a basketball through a mesh with a million holes the size of hula hoops built for a small giant. All you have to do is not hit the edge of one AND have it bounce backwards instead of inwards.
If there are airborne virions floating around, where there's one, there's a thousand buddies along with it, so you have to get lucky with that hula hoop protection multiple times if there is someone sick around. This is probably why all studies on masks do not show any statistically significant efficacy against viral transmission in every study I've seen so far to date.
Yes I had to go with a median figure as people would start arguing specifics viruses, the point is the same. N95 stop very little as they weren't invented for a medical setting (at least that's my understanding)
I know you said "starts at" but it's really more like 60-100nm, so quite a bit less than that.
It's a basketball through a hula hoop built for a small giant, though really its like trying to throw a basketball through a mesh with a million holes the size of hula hoops built for a small giant. All you have to do is not hit the edge of one AND have it bounce backwards instead of inwards.
If there are airborne virions floating around, where there's one, there's a thousand buddies along with it, so you have to get lucky with that hula hoop protection multiple times if there is someone sick around. This is probably why all studies on masks do not show any statistically significant efficacy against viral transmission in every study I've seen so far to date.
They also have a bacteria problem.
Yes I had to go with a median figure as people would start arguing specifics viruses, the point is the same. N95 stop very little as they weren't invented for a medical setting (at least that's my understanding)