Ask HN: Can we hack together a ventilator?

There are already some good open source projects hacking together ventilators. It occurred to me that we might be able to combine a computer fan (or two) together with a fan controller chip and an arduino to make a ventilator.

I don't know enough about the fan controller chips, though, to do this. Does anyone have an opinion?

Finally here's the best open source project I've seen as a starting point:

https://panvent.blogspot.com/