I’ve always wondered this since I was a child, and I see people use bags to rebreathe the air they have in their lungs for panic attacks, which only increases my curiosity.
In: Biology
There’s also the issue of pressure if you are going deep underwater. a bag of air at sea level would get crushed/deflated underwater due to higher pressure. This happens to your lungs too. When scuba diving, the tanks have very compressed air, and the regulator reduces the pressure (but still more than surface pressure) to keep your lungs inflated.
Latest Answers