Oxygen Management

How to increase O2 in Subnautica 2

This guide details various methods for increasing oxygen capacity in Subnautica 2, which is crucial for deeper exploration and resource gathering. It covers early-game options like Oxygen Tunics and Bloom Sap funnels, as well as upgrades such as the Standard Air Tank and High Capacity Air Tank, and utility items like Air Bladders and the Rebreather.