It's far more than you could ever plant, I suspect. I've been in legal marijuana grows in houses where it is nearly wall to wall massive growing plants under many 1000W bulbs and the CO2 still goes up when people go in the house and start breathing and moving around.
When we see science fiction movies and there is a tiny little area with plants that is supposed to be providing the multi-person crew with CO2 scrubbing and O2 generation, I think the size needed is vastly underestimated.
>A human breathes about 9.5 tonnes of air in a year, but oxygen only makes up about 23 percent of that air, by mass, and we only extract a little over a third of the oxygen from each breath. That works out to a total of about 740kg of oxygen per year. Which is, very roughly, seven or eight trees' worth.
When we see science fiction movies and there is a tiny little area with plants that is supposed to be providing the multi-person crew with CO2 scrubbing and O2 generation, I think the size needed is vastly underestimated.
>A human breathes about 9.5 tonnes of air in a year, but oxygen only makes up about 23 percent of that air, by mass, and we only extract a little over a third of the oxygen from each breath. That works out to a total of about 740kg of oxygen per year. Which is, very roughly, seven or eight trees' worth.
from- https://www.sciencefocus.com/planet-earth/how-many-trees-doe...