My husband is in hospital with Covid and pneumonia. He is 82 and has other health problems. I managed to speak to him today and he is very ill but says he is now on an ordinary oxygen mask before he was put into a type of helmet and he had a job even trying to sleep. What would that be, any ideas?
There are helmet ventilators, not sure if they are used here though. https://www.nih.gov/news-events/nih-research-matters/helmet-based-ventilation-eases-respiratory-distress I wish your Husband well.