74 balloons burst before it worked.

In this project, I test two types of airbag inflating.
1. The air is accumulated in the balloon placed inside a metal cylinder. After the burst, the air releases and inflates the exterior balloon. IIt's soft for a human to bury in and the balloon deflates quite fast.
2. Shutter releases the balloon inflated inside the cylinder. Since the balloon is pressed to the walls of the cylinder, this requires higher pressure and a thicker balloon silicone which takes lots of space and requires higher pressure. The balloon is very strong and retains pressure.

The system I constructed allows to immediately release the airbag at the moment of a crash. The second goal I had was to optimize the space to make a miniature airbag capsule.