I'd like to learn about plant production of oxygen

You slept through high school biology or did you have a totally inept teacher?

Can adding plants to a house make a useable difference in the oxygen level
in the home -- Will they get rid of carbon dioxide in the home?

Crowding a conservatoryful of leafy plants throughout the house might make a
faintly measurable difference in the oxygen and Carbon dioxide levels. It is no
substitute for adequate ventilation or forbidding smoking.

Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)