Article by Matt Essert, News.Mic

A group of scientists at the University of Southern Denmark have developed what they’re calling a “crystalline materials that can bind and store oxygen in high concentrations.” In other words, they’ve figured out how to pack a room’s worth of oxygen into a bucket full of crystals.

“A few grains contain enough oxygen for one breath, and as the material can absorb oxygen from the water around the diver and supply the diver with it, the diver will not need to bring more than these few grains,” professor Christine McKenzie said in a release. “When the substance is saturated with oxygen, it can be compared to an oxygen tank containing pure oxygen under pressure — the difference is that this material can hold three times as much oxygen.”

Unlike other substances that also react with oxygen, the developers of what’s being called the “Aquaman Crystal” are likening it to a sponge that can absorb and hold oxygen, rather than simply react to it and lose the elements’ life-sustaining properties.