Much of the research on these beneficial houseplants has been done by NASA scientists researching ways to create suitable space station habitats. All indoors plants (flowering or not) are able to purify indoor air to some degree through their normal photosynthesis processes. But some were found to be more beneficial than others in removing harmful household toxins, even removing 90% of chemicals in the air in only twenty-four hours!
The three main household toxins of concern are:
These carcinogenic chemicals are used in the manufacturing of synthetic substances and materials and are off-gased from new materials for some time (up to several years, depending on the material of product in question). Benzene can also be emitted from gas ranges during use, making some types of houseplants below great for use in the kitchen.