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Comment on Personal Fresh Air Desk

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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.

That alone can be a beneficial effect.

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