WRONG
The indoor plant that produces the most oxygen is the vacuum pressure swing adsorption oxygen generator plant.

You can buy one here from Linde Engineering: www.linde-engineering.com/en/process-plants/adsorption-and-membrane-plants/oxygen-generation/index.html
(Agent Pr1ck llǝɯs ǝɥʇ sʇI ˙ǝɔɐld sᴉɥʇ ǝʇɐɥ l, Wed 21 Jun 2023, 23:10, archived)

Shill

( mofaha ┐( ˘_˘)┌ ʅ(́◡◝)ʃ, Thu 22 Jun 2023, 4:56, archived)