Oxygen Tank

The  is a smaller version of the Backpack's internal Oxygen storage. It can be attached to any slot on the backpack, including its widget slots.

Usage
When connected via a Tether to a base module or vehicle, the will fill with Oxygen. The only begins filling once the main backpack tank is full.

The attaches to any 1-slot and stores as much Oxygen as the backpack's main tank (70 seconds when idling, 50 seconds when running); having one  in the backpack doubles the player's Oxygen storage.

When untethered, the 's Oxygen is consumed prior to the backpack's. The oxygen gauge on the tank visibly empties as its capacity runs dry.

If the player attaches a full oxygen tank to every auxiliary and widget slot on their backpack and Terrain Tool and idles, they will be able to breathe untethered for around 16 minutes.

Tank Réservoir Tank