Emergency Air Pockets.
We’ve all had one of those moments where we see an underground cavern and we set out to explore, just as we reach the bottom we run out of air. Slowly, we die as we swim as fast as we can to the surface. Or while building an underwater home, find it too difficult to build due to air problems. Well no more. Here at the Block Brothers, we shall show you how its done!
Torches can be used to place simple emergency air pockets, however the air pockets only last for a second or so. But it will provide you with one quick breath which will fill up the air meter.
Doors can also be used, these can be placed and will stay there, permanently.
Hope this tip comes in handy in the future. HAPPY MINING!