Air Bladder (Below Zero)

+# Air Bladder (Below Zero)+ +This article is about the **Air Bladder** in *Subnautica: Below Zero*. For information on this subject in the original *Subnautica*, see Air Bladder.+ +![Air Bladder](https://wiki.subnautica.com/sn/images/Air_Bladder_%28BZ%29.png?a68d2)+ +## Overview+ +| Attribute | Details |+| :--- | :--- |+| **Category** | Tools |+| **Description** | Emergency flotation device. Chemical reaction produces lighter-than air gas for fast personal buoyancy. |+| **Source** | Acquire a Bladderfish |+| **Build Time** | 3 seconds |+| **Size** | 1 |+| **Attribute** | Buoyancy |+| **Debug ID** | `airbladder` |+ +> If you are tired of hearing the word "oxygen," the Air Bladder provides a significant upward thrust to help you get to air faster.+> ― PDA.+ +The **Air Bladder** is a tool crafted with the Fabricator. It is a flotation device that allows the player to reach the surface of the water faster than simply swimming to the surface.+ +## Uses+ +Once equipped, the player can press **Right Mouse Button** to deflate the Air Bladder and ascend quickly to the surface.+ +* The player can swim down into the ocean with the Air Bladder equipped, whether inflated or deflated.+* The Air Bladder can also be used to replenish **15 seconds of oxygen** by pressing **F**. This will deflate the Air Bladder, and the player must swim to the surface or enter a seabase to inflate it.+* The Air Bladder is especially useful in situations where the player is in danger of drowning or needs to escape dangerous creatures.+ +## Controls+ +| Action | Mouse & Keyboard | Xbox One | PlayStation 4 | Nintendo Switch |+| :--- | :--- | :--- | :--- | :--- |+| **Inflating and Deflating** | Right Mouse Button | Right Trigger | R2 | ZR |+| **Oxygen Replenish** | F | D-Pad Up | D-Pad Up | ZR + Y (Note: Wiki lists D-Pad Up for Oxygen Replenish specifically) | *See table below*+ +*(Note: The source text maps 'Oxygen Replenish' to F/D-Pad Up across platforms in the provided table structure)*+ +| Action | Mouse & Keyboard | Xbox One | PlayStation 4 | Nintendo Switch |+| :--- | :--- | :--- | :--- | :--- |+| **Oxygen Replenish** | F | D-Pad Up | D-Pad Up | D-Pad Up |+ +## Speed+ +A number of tests were run from the depth of 50 meters to determine the speed of swimming to the surface with fins versus using the Air Bladder.+ +* With fins, players will average **4.16 m/s** (12 seconds to ascend from a depth of 50 meters).+* With the Air Bladder, players will average **20.52 m/s** (3 seconds to ascend from a depth of 50 meters).+ +## Recipe+ +The blueprint for this item is unlocked by picking up a **Bladderfish**. It is crafted in the Fabricator.+ +* x1 Bladderfish+* x1 Titanium