The article makes it clear that positive pressure ventilators can cause problems, but I found this: https://amp.reddit.com/r/explainlikeimfive/comments/3hiwb9/

The article makes it clear that positive pressure ventilators can cause problems, but I found this: https://amp.reddit.com/r/explainlikeimfive/comments/3hiwb9/eli5_why_are_people_still_in_iron_lungs/ https://amp.reddit.com/r/explainlikeimfive/comments/3hiwb9/e... https://en.m.wikipedia.org/wiki/Medical_ventilator https://en.m.wikipedia.org/wiki/Medical_ventilator Also, it is Warms Springs, GA, not Warm Spring. Edit: I don't have experience with ventilators, but have used a nebulizer and a positive pressure lung clearance device. One of the problems is that they need to be sterilized and if they start growing stuff, you are basically injecting infectious material directly into the lungs for someone who already gets lung infections easily. This is a potentially deadly situation.