It's called weights

Yeah

Me to

You can't go to deep because pressure will squeeze ballons

@@rozgranix You can dive, because before you even start to dive, the balloons will be empty, it exactly holds one breath. But trying to suck that air out of those tiny hoses will leave you gasping for air before you even try. The video is just a "humoristic sketch", nothing serious.

Good for you :)

Nobody asked bro

How much do you breath? How much of that balloon is going to be empty if you do one full inhale? If you want to be serious about this, you would take PET jugs and just pressurize them to 10 bar. So that would be 20L of air for a 2L bottle. That's almost 5 full inhales if you have a very low lung volume of 4l. It also prevents you from blowing your air back into the jugs, and give yourself CO2 poisoning. But no, even 10bar is not enough. There is a reason that normal tanks use more than 200 bar compressed air. And a 10 bar explosion, even though it's not that much, it is a very drastic expansion, so it might be dangerous. One of my bike tires (usually bike tires go from 5 to 10 bar depending on inner and outer tube.) I was just inflating to 5 bars exploded. A tire does not contain that much air, but I could see the fairing bulge from the expansion. (Aerodynamic recumbant with wheel covers).