www.cleanairgardening.com Studies done by NASA and The Associated Landscape Contractors of America have shown that certain houseplants can reduce and absorb air pollutants, thus aiding to the air quality. The link above is to a great article highlighting these points, and explaining the top houseplants to improve air quality. After you’ve read the article on the page, there is a multitude of products available for houseplants at Clean Air Gardening. These can help your indoor houseplants grow, and will leave you with better air quality.