High levels of carbon dioxide might be bad for your brain and stuff (https://slatestarcodex.com/2018/08/23/carbon-dioxide-an-open-door-policy/).
Has anyone found a way to scrub indoor CO2 besides buying a ridiculous number of plants?
I've done brief searches for products and come back empty handed except for this algae bioreactor-filter thing, which claims to be "25 plants worth" and not require sunlight (https://algenair.com/). I'm not yet convinced this is viable for e.g. a one-room office
Any tips appreciated!