Bernievarian
Prominent member
- Joined
- Jan 15, 2017
- Messages
- 2,993
- Points
- 654
Clearly the NHS will have thought about this, because a small additional percentage of O2 can be dangerous.
The air we breathe contains only about 21% oxygen and 78% nitrogen, the remaining % being shared by all other gases. Breathing pure oxygen is very dangerous because it will all transfert to the blood and alveolas would colapse ! In normal mixture, nitrogen not being transfered to the blood, it keeps the alveolas inflated when the oxygen is going into blood .
Also the "covid rooms" are maintained at negative pressure so nothing can accidentaly escape, but by the controlled (filterd, processed, etc.) air supply / extraction system.
Stay well All, Bernie.