Subnautica 2 Portable Oxygen Generator Guide
How to craft and use the Portable Oxygen Generator in Subnautica 2. Fragment locations, recipe, and charge mechanics.
How to Unlock
Scan 2 fragments inside the Great Jaw’s core
Tip! Avoid purple rope-like tendrils inside the pod — touching them causes the shell to snap shut and trap you.
How to Craft
Craft at Habitat Builder
| Material | Amount |
|---|---|
| Titanium | x3 |
| Lithium | x2 |
| Basic Battery | x1 (to power) |
How to Use
Recharges over time through electrolysis
| Charge Level | Oxygen Restored |
|---|---|
| Fully charged | +15 oxygen |
| Partially charged | +5 oxygen |
Tip! The Portable Oxygen Generator is a supplement, not a replacement for Air Tanks. Pair it with a High Capacity Air Tank for longer dives.
The Bottom Line: Portable Oxygen Generator is one of those crafts that looks simple on paper but becomes a bottleneck if you don’t plan ahead. I’ve been in the situation where I needed one more and had to swim back across three biomes to get it. Build extras. Store them in a locker. Future you — the one who’s 200 meters deep with a Leviathan on your tail — will be very grateful.
Frequently Asked Questions
Where are Portable Oxygen Generator fragments?
Inside the Great Jaw Leviathan's core. One fragment sits just outside the central pod, the other inside beneath Metal Salvage. Avoid purple tendrils — they snap the shell shut.
How do I craft the Portable Oxygen Generator?
Titanium x3 and Lithium x2 at Habitat Builder. Requires 1 Basic Battery to function.
How much oxygen does it restore?
Fully charged: +15 oxygen. Partially charged: +5 oxygen. It recharges over time through electrolysis.
About the author
Editor-in-Chief
Founder and Editor-in-Chief of gameguidesbox.com, began surfing the web in the late 19th century. Passionate about movies, coffee, gaming, and life itself. Favorite games include Titanfall 2, Baldur's Gate 3, Metro, PUBG, and CS2.
You may also like
Subnautica 2 - Complete Guide Hub
Your complete Subnautica 2 resource. Walkthrough progression, all biomes & POI maps, leviathan locations & scan tips, best biomods, cooking recipes, farming guides, vehicle upgrades, and an interactive database with all 65+ items, 18 buildings, and 12 biomes.
Subnautica 2 Advanced Wiring Kit Guide
How to craft the Advanced Wiring Kit in Subnautica 2. Recipe, unlock conditions, and items that require it.
Subnautica 2 All Leviathans — Locations & How to Scan
Complete guide to all Leviathans in Subnautica 2. Collector, Shiver, Great Jaw, Deepwing Brooder locations and scan tips.
Comments