Thanks for the insight Mike.
What exactly is this printed part? Looks like a one way valve? Why do they need to be changed every 8 hours as per the BBC article?
If these things do in fact get used by hospitals, I think it just highlights how desperate the situation is. That's SLS printed and absolutely the worst option for hygiene/sterility.
Maybe things work differently outside of the US? Why else would the government ask for help? Surely even the supply chain must be certified otherwise.