I agree that the issue I raised does not interfere with this proposed intervention (sorry for not making this clear).
Re availability, googling for the term [buy n95 masks] gives some relevant pointers within the first 2 result pages. There are probably many counterfeit respirators out there and these sellers don’t seem well-known, but one may still want to bet on them if the manufacturer’s website offers a way to authenticate the validity of some unique ids on the respirators etc. (3M has something like this). Note: I’m not recommending the above google search as a way to buy respirators; people may have better alternatives depending on where they live (e.g. in Israel one can buy n95 respirators from a well-known retailer).
I agree that the issue I raised does not interfere with this proposed intervention (sorry for not making this clear).
Re availability, googling for the term [buy n95 masks] gives some relevant pointers within the first 2 result pages. There are probably many counterfeit respirators out there and these sellers don’t seem well-known, but one may still want to bet on them if the manufacturer’s website offers a way to authenticate the validity of some unique ids on the respirators etc. (3M has something like this). Note: I’m not recommending the above google search as a way to buy respirators; people may have better alternatives depending on where they live (e.g. in Israel one can buy n95 respirators from a well-known retailer).