I'm just saying that the person that needs to get off their ass and move on these ideas isn't Mary Barra but Donald Trump (and McConnell and Pelosi of course).
Ironically the way to make this stuff cheaper would be a three-fold attack.
* Make MORE things that use the same parts, so that making the raw materials is commodity.
* Reduce waste in use (if sterilizing the filters for reuse / etc is possible, etc).
Part 3: Look for alternatives that are feasible.
A hot-zone (book) style line supplied breathing air positive pressure suit that can be scrubbed clean on the outside, OR a similar glove-box (negative draw?, scrubbed inside?) style phone-booth like I think I saw on TV from South Korea (IIRC) would be much better replacements.
Reportedly the Hungarian government learned about this operation & are likely to do something similar in the next days.
Also in parallel, Czech Airlines aircraft have been pretty much drafted and sent to China for more stuff - like more tests, respirators and personal protective equipment. And one of the huge Ukrainian AN-124s has been chartered and is already on way for ~100 tons of medical supplies in one go, with more likely to follow.
Basically any classical goods transfer methods are far too slow for this and time is of essence.