Primary use
Emergency surfacing, oxygen refill, and beginner mistake recovery.
Emergency ascent gear
Air Bladder Guide
Inventory icon
Air Bladder searches usually come from a near-death loop: players are pushing too deep, losing exits, or returning too late. Use it as a rescue tool when the route goes wrong, then upgrade tanks and plan cleaner return lines for deeper wrecks.
Quick answer: Air Bladder is emergency mobility gear for surfacing mistakes and oxygen recovery, not a replacement for Air Tank upgrades. Equip it, press F to refill oxygen, or right-click to trigger a fast ascent toward the surface.
Reviewed .
Route status
Useful after early wreck routes start pushing beyond comfortable oxygen range.
In-game check
With Air Bladder selected, F refills oxygen and right-click triggers the fast ascent action.
Route and unlock plan
Oxygen-depth guide, first tank upgrades, and early wreck safety.
Step 1
Use it as emergency gear
Air Bladder helps recover from bad timing, but it should not replace better oxygen planning.
Step 2
Know the two controls
With Air Bladder selected, press F to refill oxygen. Right-click when you need a quick upward escape toward the surface.
Step 3
Upgrade tanks first when possible
Standard Air Tank and later tanks improve the whole dive, while Air Bladder is a recovery button.
Step 4
Pair with route discipline
A visible exit line and enough oxygen margin matter more than carrying one rescue item.
Player decisions
| Question | Status | Rule |
|---|---|---|
| Best use | Emergency ascent | Use it when return timing fails or a route goes wrong. |
| Oxygen refill | F key | Select Air Bladder and press F when you need the oxygen refill behavior. |
| Fast surfacing | Right-click | Right-click is the quick ascent action, useful when a deeper detour is about to become a death swim. |
| Not a replacement | Tank upgrades still matter | It does not give the same route margin as more oxygen capacity. |
| Early value | Beginner safety | Worth considering if repeated deaths happen before better gear. |
Route confidence
High confidence
Role
The item is best treated as emergency mobility and oxygen recovery gear.
Confirmed use pattern
Control split
F handles oxygen refill, while right-click handles fast ascent.
Do not overstate
Exact speed
Use the control advice, but do not turn fast ascent into a fixed metres-per-second value.
Live UI check
Recipe
Use the live Fabricator row.
Useful links
Questions people ask
What does Air Bladder do?
Air Bladder is emergency oxygen and ascent gear. Select it, press F to refill oxygen, or right-click to fast ascend toward the surface.
Should I craft Air Bladder before an Air Tank?
Usually no. Tank upgrades improve every dive; Air Bladder mainly helps recover from mistakes.
Does right-click refill oxygen?
No. Right-click is the fast ascent action. Use F for the oxygen refill.