Packed Air

Packed Air is a joke block from Java Edition 23w13a_or_b.

Obtaining
Packed Air can only be obtained after voting for the rule.

Usage
Packed air can permanently fills the player's breath bar when standing in it.

It can only be placed in closed rooms on the moon otherwise it disappears like water in the nether when placing it in an open space on the moon, anywhere in another dimension or when the closed room is opened.

There is a maximum size of room that can be filled with only one packed air.