peecake's bf

I just found the greatest thing.

This is a canary resuscitator.

When the miners notice the canary getting sick with carbon monoxide poisoning, they can close that circular hatch so no more gas gets into the canary cage, and open the valve on that oxygen tank to keep the canary breathing. In other words, they made a spacesuit for birds.

By immediately giving the canary access to clean air, the miners can save it from the poison. The bird lives. To be clear, this is not for economic purposes, this was specifically created because the miners felt bad and wanted to save the bird.