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I’m not smart enough to know, but that doesn’t seem like it’s enough to actually provide a person all their oxygen.
Any biologists here?
In the average day, a person breathers out 500 litres of co2 in a day. So approximately 20 litres per hour.
There is no way that amount of plants is converting that much co2 back into oxygen,
If this rig is air tight, all this person is doing is slowly poisoning themselves with co2 and lack of oxygen.
For some reason I remember something like 8-12 fully grown oak trees being the minimum to sustain a person. I think it was in a thread about surviving in a bunker or fallout shelter.
Not a biologist though, so you'd better do your own googling
Wouldn't algae be the most efficient at oxygen production? You'd still need about 1000L of water for the algae (assuming a 1L:1g ratio for the algae to thrive), the light source would hopefully be solar or else you're using a lot of energy (good luck bunker people), and you'd have to have some method of feeding and filtering it (maybe its output can be something else's input and vice versa?), but it's a little more doable than 8-12 oaks.
Art