Sevb32 said:
Sigh, next thing you know you'll want to delete the entire scene. Luke takes Vader's mask off in ROTJ outside his meditation chamber with no back up breathing device, which is what Vader was breathing thru in the the chamber, Vader died in ROTJ because the electricity ruined his suit and breathing devices. He was going to die anyway ("Nothing can stop that now.") but wanted to look on his son with his own eyes before he died. Kind of a miracle he survived ROTS.

No, I just want the mask kept on but the helmet lowered (we hear some sort of kthunk! so presumably it was held on with some sort of complicated clasp that Luke had to take time disconnecting) which is a better explaination than the EU one which would make Vader a bit of a push over cybernetically (something made worse by the acrobatics of General Grievous and his droids in ROTS).

Adding an Anti-Kthunk! to the Jedi sound mix is something worth thinking about (true Anakin was already dying before he took his mask off but the mask was prolonging his ebbing away life).