Rebreather
A vital depth upgrade for surviving the pressure and distance of the deep ocean.
The Rebreather is a specialized piece of survival equipment in the Subnautica universe, designed to improve oxygen efficiency at greater depths by recycling exhaled air. Unlike the Oxygen Tank, which simply stores oxygen, the Rebreather reduces the rate of oxygen consumption when diving below 200 meters, making it a crucial upgrade for deeper exploration. Crafted later in the game, it represents a more advanced stage of human adaptation to Planet 4546B's hostile aquatic environment, working in tandem with oxygen tanks to extend dive times in high-pressure zones.
- Material Needs
- Titanium (x2)
Lore & Background
While the standard Oxygen Tank serves as the foundation for shallow exploration and initial resource gathering, the Rebreather addresses a critical flaw: the increased oxygen consumption rate at depth. By recycling exhaled air, it allows divers to venture deeper into biomes like the Grand Reef or Lost River without constantly surfacing for air. Its development marks a turning point in survival strategy, where technology evolves from simple storage to active life-support systems, reminding explorers that on Planet 4546B, innovation is the key to pushing past the crushing depths.
In Their Own Story
The blue light of the PDA flickered against the dark water as Ryan checked his oxygen levels again. The Rebreather hummed softly against his chest, a rhythmic reminder that he was borrowing time from the ocean. He reached for the kelp below, pulling it free just as the warning chime began to rise in pitch. With a sharp exhale and a quick swap of the canister, the device cycled fresh air back into his lungs, allowing him one more moment to witness the glowing flora before returning to the surface.
Reader's Guide
The Rebreather is an essential early-game tool that allows players to explore underwater without being tethered to the surface by a hose or limited by a single breath. It works by taking exhaled carbon dioxide and chemically processing it, recycling the oxygen back into a breathable mix for a set duration.
To use it effectively, craft it at any Fabricator using Titanium, Lithium, and Glass found in shallow waters. Once equipped, it automatically manages your breathing cycle, but players must monitor their oxygen bar closely. When the supply runs low, the device cannot be refilled mid-dive; instead, the player must return to a safe area or a fabricator to craft a new one.
It is wielded by any survivor attempting to gather resources like Titanium Ore or Copper Ore from the seabed. While it offers more freedom than holding one's breath, its limited capacity makes it unsuitable for deep-sea expeditions until upgraded technology becomes available.
Did You Know?
- The Rebreather is not the first breathing gear crafted; that distinction belongs to the Standard Oxygen Tank, which requires 2 pieces of Titanium.
- Unlike the Oxygen Tank, which stores oxygen, the Rebreather reduces oxygen consumption by 50% when diving below 200 meters, making it essential for deep-sea exploration.
- The Rebreather is typically crafted after players have established a base and explored mid-game biomes, serving as a bridge between early survival and late-game equipment like the Ultra High Capacity Tank.
- Its simple yet effective recycling mechanism allows it to function reliably in the high-pressure environment of 4546B, complementing any oxygen tank for longer, deeper dives.