Understand Respiration
Useful when…
- Staying underwater longer during exploration or combat.
- Reducing how often drowning damage occurs during underwater work.
How does Respiration extend air supply?
Respiration adds one oxygen bonus per level, and while underwater each tick has a chance not to reduce air supply. The chance is 1 − (1 ÷ (level + 1)): one-half at level I, two-thirds at II, and three-quarters at III. The reference gives average times to fully deplete air of 32, 48, and 64 seconds at levels I, II, and III, respectively, versus 16 seconds without Respiration.
Which equipment can use it?
Respiration is supported on helmets, including turtle helmets, and is functional only in the head slot. A turtle shell's Water Breathing effect extends the stated time by an additional 10 seconds. Respiration also reduces drowning damage over a given period because air supply is restored by 20 whenever drowning damage is dealt.
When is it worth considering?
It is useful when underwater time is important, such as exploring or fighting underwater, because it delays air depletion and the need to surface. Higher levels increase the average duration, but the tick-by-tick chance means the precise time in a particular dive can vary.
What should I avoid assuming?
Respiration does not provide enhanced underwater vision in the described Java mechanics. It must be worn in the head slot to function; applying it to another item with commands does not make that item a functional substitute. Its duration figures are averages, not guaranteed timers.
Limitations and tradeoffs
- Its benefit is specific to underwater air supply and drowning rather than general damage reduction.
- The extension is probabilistic, so an individual dive may differ from the listed averages.
Common mistakes to avoid
- Expecting an exact guaranteed air duration from the averages.
- Applying it outside the head slot and expecting it to work.
- Assuming it improves underwater vision.