help on bubbleponics in a sealed c02 room

i have been looking into these bubbleponics systems and am thinking of trying them out, i would like to use this in a fully sealed room with c02.

question is, bubbleponics systems use oxygen to supply the roots???

so if using this system in a sealed room wouldn't the roots be receiving c02 instead?

The co2 wont get into the water your reservoir should be sealed too light proofed 100% ...

where does the pump suck the air from then?

I don't remember the figures, usually air is around 300-500ppm and you bring it to around 1500ppm for growing?

That's like going from 0.0003% to 0.0015% C02 in the room. It won't matter to the water in the buckets, they'll still have plenty of oxygen to absorb with the sealed room air pumped through them.