Opinions on this method?

[Dizzy_Dreams]

EDIT.

The R2D Rebreather do you guys think it's legit and a good option to use to pass on? Would any of you guys attempt with it?

How legit do you think this is? And would anyone on here attempt this way?

 

[SadGuyWannaDie]

I would I've been watching it for a while but I don't know if you want to post the link to it here it'd be better to just refer to it as the R2D Rebreather.