As a reposte to that poor post we have moved three ventilated patients back to a normal respiratory ward today and off the vent. From my perspective I was surmising it may be a ventilator based on the cases I've seen at my ICU. It may be hi-flow oxygen but either way he's needing a lot of support to his lungs.
Maybe he's only on a nasal canula. Maybe he's on CPAP with a low PEEP. Perhaps he's on ASB with a high trigger level. Or ASB with a low trigger level. Or maybe he's really poorly and on IPPV at a very high O2 level.
Let's not scare the bejeesus out of people by telling everyone there's only a 50% chance of surviving a ventilator. The reality is very different. For someone Boris' age with early intervention it not a million miles from 100%.