4 ms·
Looks like they've been in use since 1972 and in use in Healthcare specifically since 1995. https://en.wikipedia.org/wiki/N95_respirator#History https://en.wik
by srajabi 3y ago
Looks like they've been in use since 1972 and in use in Healthcare specifically since 1995.
https://en.wikipedia.org/wiki/N95_respirator#History https://en.wikipedia.org/wiki/N95_respirator#History