suffocation And CPAP and bilevel devices

[archangle]

There's actually some risk from using a chin strap, but I can open my mouth pretty easily even with a chin strap. My respironics chin strap had a warning about asphyxiation.

Like if you choke while trying to swallow it?!

The warning is about the risk of rebreathing CO2 if power goes out, you're wearing a nasal mask, the power goes out, and you don't open your mouth due to the chin strap.

[renatae]

"Some people tape their mouth shut to stop mouth breathing. This is like using a FFM without an anti-asphyxia valve and makes the aspiration risk a lot worse."

I use "ChinUp Strips" instead of a chin strap, but, properly applied, the mouth can be opened without any real trouble. But I'd never put regular tape on, sealing up my mouth.