It's ever so simple really. First watch this video . Kamal Meattle explains that
Chrysalidocarpus lutescens i.e Areca Palm: Removes Co2 and converts it into Oxygen
Sansevieria trifasciata 'Laurentii' i.e. Mother-in-law's Tongue: Converts Co2 to Oxygen at Night
Epipremnum aureum i.e Money Plant: Removes Formaldehydes and other volatile chemicals
For modest households it would be quite possible to include enough of these plants at home to literally grow some or all the fresh air you need to survive. What's stopping you?