I was pumping water out of an aquarium and the intake hose before the pump kinked, at the kink there was a stream of "air" bubbles that formed due to high vacuum. It would seem that the bubbles would go back into solution pretty quick but the bubbles went through the pump and continued all the way down a 50 foot exit hose. Now, let's say we put a 'T' in the line with a tube sticking up to collect these bubbles into a large container. Seeing as though water is only composed of oxygen and hydrogen what would this "air" be composed of? Would it be breathable?