40 posted 3 years ago by StrngerDngerMaus 3 years ago by StrngerDngerMaus +60 / -20 21 comments share 21 comments share save hide report block hide replies
They only wore them for certain periods and usually have to put a new one on every 2 hours.
There’s an astm standard for it and a friend of mine is also a nurse. She’s the one who told me the two hour rule
https://www.primed.ca/resources/astm-mask-protection-standards/