“Breather: A rod the length of a hand and the width of a finger. Pressing both ends at the same time extends a membrane from the middle. If the user puts their mouth around the rod while also carefully covering their nose with the membrane, they will be able to breathe not only underwater, but through poisonous gases. We have tried to discover how the rod works, but we do not even know what the membrane is made of.
Estefa Macasli, An Investigation about the Artifacts of Haven