This is a self sustaining oxygen mask. The tank is powered by a plant, which releases oxygen as carbon dioxide is absorbed from the user, hence putting an end to oxygen tanks. I decided to use a plant rather than a plain mechanical converter, because I am interested in the genetic engineering of plants and living things. I believe that technology and nature can coexist and create awesome inventions like this. The mask itself can be greatly beneficial to not only swimmers and astronauts, but in a post apocalyptic world where oxygen might be scarce. We have continuously made strides in science to create unlimited energy sources and I believe that this invention will one day come to fruition.