8 ms·

Is that what these are? https://www.youtube.com/watch?v=SVodALR3Zoo https://www.youtube.com/watch?v=SVodALR3Zoo

• rtkwe 7y ago
  No negative pressure ventilators are iron lung type devices. [0] What's in that video look like just oxygen hoods which surround the head in very high oxygen air. [0] https://en.wikipedia.org/wiki/Iron_lung https://en.wikipedia.org/wiki/Iron_lung
  • JshWright 7y ago
    It's both high concentration, and high pressure.
    • rtkwe 7y ago
      Ah yeah totally missed they were pressurized and inflated.