Why does the peaceful pill handbook advise against using an oxygen mask for the exit bag?

[Comatose11]

I've heard PePH advises against using the oxygen mask, but I don't have the book so I'm not sure why they don't recommend it.

 

[comfortablydumb]

Because your facial muscles relax when you lose consciousness, which can compromise the seal between the mask and your skin. That is the reason PPeH advises against it.

 

[Sternum]

To be honest, an oxygen mask would still work.

 

[Comatose11]

Because your facial muscles relax when you lose consciousness, which can compromise the seal between the mask and your skin. That is the reason PPeH advises against it.

Yeah I'm just going to use a gun then. It's also way faster.