Phillip, That's mainly because they didn't use them indoors, where they are the most effective. The masks likely worked fine, but the humans, not so much.
Phillip, That's mainly because they didn't use them indoors, where they are the most effective. The masks likely worked fine, but the humans, not so much.
makes sense. i mean they put people in caves to help TB and pneumonia. wonder how that worked out
That's mainly because they didn't use them indoors, where they are the most effective. The masks likely worked fine, but the humans, not so much.