We desperately need some tear downs of the Ventilators. The iFixit[1] page only has manuals and very few pictures. If people can get their hands on medical grade ones even if they are broken would be useful. I have found some good ones locally, but they are way too expensive just to tear down(>$1400). There lots of people working on ventilators, and will require a many people evaluating designs since this is a life critical system.