Scaling as in just let the machines run longer, normal hours to 24/7 or whatever is necessary, there's more room for a nuanced production if less people are involved right? For clarification I didn't mean scaling as in buying more machines, which I agree would likely require prohibitive investment.

Of course keeping a few machines in the wings is probably cheaper than overtime and unemployment.

[edit] I'd also like to know how difficult it would be to just switch the machine over to making cheaper, non-medical grade masks as demand changes?