Pretend it's December 2019. What are ventilators used for? As far as I know, they were used strickly for people in comatosed-like conditions and could not breath on their own, and they wanted to keep them alive long enough to say their last goodbyes to their loved ones. Similar to why CPR is used.

This seems to be corroborated by this: https://www.healthline.com/health/ventilator