Method Exit bag with internal oxygen mask combo?

[lmon]

Hi, I'm just wondering what people think about an oxygen mask/ exit bag combo. Surely it might knock you out faster if the O2 is in a smaller dead space right around your face than a larger exit bag? What do you guys think? Then again I've never seen this done so I don't know maybe it's not a good thing.

 

[dreamofsheep]

I was considering something similar with a nebulizer mask like this connected to the nitrogen tank beneath a turkey bag exit hood?