Anybody knows if adding O2 into the air, and removing CO2, at the amounts done by plants, is really beneficial for humans? I can see removing formaldehyde is good, but shouldn't there be major amounts of CO2 and serious O2 deficits (like at >2000m sea level) before there is any effect? And can plants cause this effect?
A lot of plants in an area, room for example, can give the area a fresh or clean feeling. That small change can be enough to see a benefit to you as it's just a more pleasant place to be.
