I would bet a lot that the production lines weren't running 24x7 or anywhere near it for ventilators. They're probably batch builds. i.e. 1-4 weeks of product

I would bet a lot that the production lines weren't running 24x7 or anywhere near it for ventilators. They're probably batch builds. i.e. 1-4 weeks of production every X weeks. Scaling production != building new lines/factories, just reprioritizing, for significant uptick in units shipped. But you have to hope that those production lines aren't also providing mission critical goods.