3 ms·

I didn't understand from the article about a "shampoo bottle with bubbles left in it". This diagram seems simple enough.

• qwerty456127 8y ago
  I can't even understand the diagram: how is exhaling into a glass of water supposed to make breathing easier?
  • kpil 8y ago
    Increasing the pressure in the lungs, by increasing the back pressure in the exhaled air.
  • webnrrd2k 8y ago
    Breathing into water, per se, doesn't help. The air blown into the system is lightly pressurized, and this pressure helps inflate lungs just like inflating a balloon. The water bottle is there because it's difficult to control the amount of pressure. Sinus tissues and lungs are very delicate, and pressurized air also messes with blood/gas ratios, so it's important to use the minimum pressure you can get away with. The bottle of water allows the pressure to be controlled simply and precisely, by adjusting the depth of the hose.
  • FooHentai 8y ago
    My understanding is that having water at the terminal side of the air flow creates back-pressure, which helps prevent the lungs collapsing.
    • selimthegrim 8y ago
      Is this sort of system used for gunshot or stabbing victims where the lung was punctured?