Eli5: why does an IV drop into that capsule that’s half full of iv and half air?

Question

Eli5: why does an IV drop into that capsule that’s half full of iv and half air?

In: 1726

Answer 1

To stop air bubbles in the IV. Since Air floats, it will rise up into the little air/IV compartment, while only IV will go down the tube into your arm.