How to Get Oxygen in My Base in Subnautica
Just craft and place a solar panel on the roof of your base. Daylight will do the rest!
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You need to build a 'Base Oxygen Generator' AKA a solar panel, bioreactor, or nuclear reactor. Place it on your base and voila, you'll have oxygen!
Build a Hatch, then construct a Solar Panel, Bioreactor, or Nuclear Reactor to supply your base with power; oxygen comes with it!
Trust me, once you install a Bioreactor in your base, you'll have more oxygen than you'll know what to do with.
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