In the 80ties, NASA collaborated with the Associated Contractors of America (ALCA) to research which plants are best for filtering air and reducing the amount of various chemicals. Here is the Link to the complete study: Clean Air study - and the lovethegarden.com Community did put up this inforgraphic as a perfect guide for which plants you should cultivate at home and at your office. Our advise? All of them! SPOTTERON loves jungle:)