Check out this interesting presentation given at the TED Conference by Kamal Meattle of Greenspaces, one of the world’s “greenest” office buildings.
The presentation shows that by using three common houseplants you can greatly increase the amount of fresh air in your workplace or home. Greenspaces’ researchers ran a 15-year test and the findings were nothing short of astounding.
The slideshare presentation is below. More info can be found here.