How does Darth Vader breathe in his helmet?

Answer 1

Well, that actually applies to medical knowledge as well. Vader's suit is like a "portable life support system." A ventilator is part of life support and it is a facemask that applies oxygen to someone who cannot breathe physically or is breathing insufficiently. When anyone is on the ventilator, their breathing can be heard through the machine and it gives off a mechanical breathing sound. So that's why we can hear Vader's breathing as mechanical.

Answer 2

Well Vader's suit was like a "portable life support system." And one thing I know, when someone is on a ventilator facemask, their breathing has a mechanical effect to its sound because you are breathing through a machine. And since Vader is breathing through a machine, his breathing makes a mechanical sound.

Answer 3

The best way to really describe that is by picturing that his suit is very much like an iron lung, in which you have tubes/cables inside you

Answer 4

die!