Contaminated Oxygen is a toxic breathable gas that's emitted by Polluted Dirt, Slime, and one-eyed creatures called Morbs. You can also find it throughout the various biomes in Oxygen Not Included.

Part 1 of this series of three articles dealt with the uses hydrogen and nitrogen found in oil refineries. Some of these uses have been around for a long time and are well known; others are newer, ...

[Hyperspace Pirate] built his oxygen concentrator around a pressure-swing adsorption system, which uses two tanks of a molecular sieve to selectively adsorb and purge nitrogen, leaving behind mostly ...