I want to assemble some automated plant, which should generate oxygen in my flat in winter time, when windows are closed. The space I can provide for it is around W:0.3m*H:0.3m*L:6m*4 walls. How much oxygen can be generated using this space?  Can it give some fruits beside oxigen, like strawberry? Will it supply oxygen amount enough for one human? If not, then how much space is necessary for this? I don't need full regeneration of air, just to keep CO2 concentration inside norms (<1200ppm)