Oh my, that's brutal. As they say in the video, these folks are well-meaning, but so many important features can't be implemented with simple BVM-based ventillation, especially with such sick lungs. Thanks for the video.non-obvious reasons that the $50 ventilators don't work.
The use of iron lungs is largely obsolete in modern medicine, as superior breathing therapies have been developed, and due to the eradication of polio in most of the world. However, in 2020, the COVID-19 pandemic revived some interest in the device as a cheap, readily-producible substitute for positive-ventilation ventilators, which were feared to be outnumbered by potential victims temporarily needing artificially assisted respiration.
Ahh! But we do.2. We don't yet have an artificial lung to pass the blood through to oxygenate and de-carbonate.