Standard O₂ Tank (Subnautica)

This article is about the O₂ Tank. You may be looking for the Plasteel Tank or the High Capacity Tank.

<infobox> <title source="title1"><default>Standard O₂ Tank (Subnautica)</default></title>

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Carrying multiple oxygen tanks will increase your survivable exposure time in hostile environments.

― PDA, Dialogue

The O₂ Tank is a crafted piece of Equipment which boosts the player's Oxygen supply by 30 units. The player has an equipment slot just for the O₂ Tank, freeing up space in their Inventory.

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, but will take up four slots (2x2) in the player's Inventory and slow the player down.

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

Speed Variation

# of Tanks
Top Speed	5.7 m/s	6.7 m/s	7.6 m/s
1	-14%	-12%	-7%
2	-28%	-24%	-19%
3	-42%	-36%	-31%
4+	-50%	-40%	-37%

Recipe

Upgrades

Gallery

• 

  How a O₂ Tank looks when constructed in the fabricator

• 

  A floating O₂ Tank