Using nitrox in Subnautica fundamentally alters your underwater experience by drastically reducing the time you spend waiting for your oxygen gauge to deplete. This breathing gas mixture, which contains more oxygen and less nitrogen than standard air, allows for extended dives without the constant pressure of your air supply running out. Mastering this resource is essential for anyone looking to move beyond basic exploration and engage in serious base building or resource gathering far from the safety of a seabase.
Understanding the Basics of Nitrox
Nitrox, also known as Enriched Air, is a chemical modification of the air you breathe. In the high-pressure environments of Planet 4546B, standard air causes your tissues to absorb nitrogen at a rate that forces you to manage a mandatory decompression stop. By utilizing a mixture with increased oxygen concentration, you effectively lower the nitrogen saturation in your bloodstream. This change directly translates to longer operational windows before you are forced to surface or return to a moonpool to reset your dive timer.
Acquiring the Nitrox Formula
To even begin the process, you must first unlock the blueprint for the Nitrox Tank Fabricator. This crucial component is found within the data boxes of the Aurora, specifically in the room adjacent to the Captain’s Quarters. Securing this blueprint requires a prawn suit or a vehicle with a drill arm to access the locked databanks. Once acquired, you will need to construct the fabricator and power it using a standard power cell to initiate production.
Gathering the Chemical Components
Producing the nitrox mixture requires two specific chemical precursors that are not readily available on the surface. You must harvest Lithium from large, dark yellow crystals found in the Inactive Lava Zone and the deeper caves of the Lost River. Complementing this, you will need to extract Silver Ore from the various Silver Caches scattered across the seabed, which appear as clusters of distinctive grey rock formations containing sparkling metal.
Operating the Fabricator
With the machine built and the resources collected, the synthesis process is straightforward. Approach the Nitrox Tank Fabricator and select the option to create the oxygen mixture. The system will combine the lithium and silver to transform a standard oxygen tank into a high-capacity nitrox reservoir. This upgraded tank holds significantly more breathable air, measured in units of 500 compared to the standard tank, making long-haul missions feasible without frequent resupply trips.
Strategic Usage and Efficiency
While nitrox grants a longer dive time, it is not a license for reckless exploration. You should always calculate the distance to your destination and the complexity of the task at hand. If you are navigating a cave system filled with hazards, the extra time allows for careful maneuvering and resource scanning. However, it is wise to maintain a reserve of standard tanks for quick returns to the seabed, ensuring you never get stranded due to a miscalculation in a remote area.
Enhancing Base Life Support
Beyond personal diving, integrating nitrox into your seabase life support system offers a significant quality-of-life improvement. Connect an oxygenator that utilizes the enriched air to your habitat, and you will notice the reduced need to constantly swap out tanks. This automation ensures that your base remains supplied with breathable air for longer periods, reducing downtime spent farming resources and allowing you to focus on exploration and construction.
