/sci/ - Science & Math

A relatively inexpensive, easily deployed life support buoy for anyone considering building their own modest underwater observatory:

http://www.amazon.com/Floating-Surface-Compressor-Hookah-Divers/dp/B000T82PLU

It's intended for use as a surface supplied air source, for helmet or hookah diving (similar to snuba) but it will also work as a small habitat life support system provided no more than three people are inside at one time

It's fairly simple, the only real secret sauce is how they filter emissions and intake so that gas fumes don't get into your lungs, but clever /sci/ducks could probably hack together something identical to this using an inflatable raft and gas powered (oil-free) air compressor for a fraction of the price.