Standard O₂ Tank (Subnautica)

The O₂ Tank is a crafted piece of Equipment which boosts the player's Oxygen supply by 30 seconds.

The player can carry multiple O₂ Tanks at a time in their inventory. Additional O₂ Tanks carried in the player's inventory will extend your oxygen supply. The O₂ Tank takes up four slots (2x2) in the player's Inventory.

By using the Modification Station the O₂ Tank can be upgraded to High Capacity Tank or the lighter model, Plasteel Tank.