How to do it
- Check the edition and version on your Minecraft title screen. This tool supports Java Edition.
- Enable cheats in your world or obtain operator permissions on your server.
- Choose your version below, copy the command, and paste it into chat using T.
Java 1.21.4 example
/effect give @p minecraft:water_breathing 600 0 true
How to undo
/effect clear @p minecraft:water_breathing
Prevents oxygen bar depletion underwater for 10 minutes.
Other releases, apart from the listed releases, may use different syntax. The interactive form only generates commands for the selected supported version.