I have studied this a fair bit and the technology is relatively simple (look it up) biggest challenge is securing enough medical grade oxygen. So yes, GM or Te

I have studied this a fair bit and the technology is relatively simple (look it up) biggest challenge is securing enough medical grade oxygen. So yes, GM or Tesla or a lot of other companies with manufacturing bases could make them pretty easily, however the current manufacturers of ventilators have got a lot to loose with an over-supply of cheap ventilators so expect FUD