Apparently, this is the winning formula for the number of plants it'll take to give you "super-fresh-sparkle-clean" air in your very own house:
Chrysalidocarpus lutescen (4 shoulder-high plants per person)
Sansevieria trifasciata (6-8 waist-high plants per person)
Epipremnum aureum (filters a number of toxic air pollutants)
I just might have to re-arrange the furniture and see about bringing some of the old outdoors in over the winter...
c/o James Shelley