Phantom Air Supply, For Superheroes Who Only Save Themselves

It's brilliant, a five-minute tank of air complete with retractable mouthpiece. You wear it on your chest like a badge of heroism—or superheroism—but it's sad, really. How many people can you save? [Yanko via DVice] » 2/23/09 10:30pm 2/23/09 10:30pm

Poseidon Mk IV Discovery Oxygen Tank Recycles Your Exhaust, Lets You…

Diving is fun until your oxygen tank runs out and you die, but this Poseidon Mk IV Discovery tank actually extends the time you can be underwater by recycling your carbon dioxide exhaust and turning it into breathable oxygen. The tank works its magic with its C02 scrubbers and oxygen cells, which is powered by a… » 3/10/08 2:32pm 3/10/08 2:32pm