"I was looking to buy my Mom a Dracaena Plant to help clean the air in her house and her breathing, from my research Dracaena is one of the most effective houseplants in air purification. It helps remove formaldehyde, benzene, trichloroethylene and carbon dioxide. These are chemicals linked with several health problems among them headaches, respiratory problems, anemia, marrow disease, kidney disease among others. I bought the 3 Different Dracaenas Variety Pack and my Mom Loved them. Thank you Good Thyme Planting, great job on answering all my questions."