Respiratory devices are different. You need a pump often because the problem is often also physical ability to breath, not just need for more concentrated oxygen.
Post #945280
- Author
- CHEWBAKAspelledwrong
- Parent topic
- SW Tech: Why is Darth Vader scarred?
- Link to post in topic
- https://originaltrilogy.com/post/id/945280/action/topic#945280
- Date created
- 24-May-2016, 1:31 PM