3 ms·

exhaled air is exhausted to outdoors through filters, fresh air comes in. different tubes for different direction of air flow

• djsumdog 6y ago
  Right, which is one of the differences between a ventilator and a CPAP machine. CPAPs don't have a return hose, so virus can spread from the exhaled air. Some hospitals are putting breathing masks on people just so they're not spreading virus into the hospital. I've also ready some hospitals are using techniques were O2 levels are increased directly in the blood supply? I can't remember what that's called though.
  • rjsw 6y ago
    > I've also ready some hospitals are using techniques were O2 levels are increased directly in the blood supply? ECMO [1], it has been used quite a bit in Italy too. [1] https://en.wikipedia.org/wiki/Extracorporeal_membrane_oxygenation https://en.wikipedia.org/wiki/Extracorporeal_membrane_oxygen...