Source: Kamal Meattle on how to grow fresh air
Areca Palm (Chrysalidocarpus lutescens)
Removes c02 converts to oxygen
need 4 shoulder high per person
wipe leaves once a day in deli once a week in cleaner cities
preferably grows in hydroponics
take outdoors every 3-4 months
take outdoors every 3-4 months
Mother-in-law’s Tongue (Sansevieria trifasciata)
converts co2 to oxygen at night
6-8 waist high per person
Money Plant (Epipremnum aureum)
removes formaldehyde and other volatile chemicals
preferably grows in hydroponics
In a 50000 sq ft building provides fresh air for 300 people using 1200 plants.

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