I think we can all agree that the people who work for NASA are pretty smart. Right? In the 1980s those smart folks turned their attention to plants. Specifically indoor plants. NASA scientists wanted to know which plants did the best job of improving indoor air quality?
Houseplants have an advantage over outdoor plants when it comes to purifying air. Indoor plants are adapted to tropical areas where they grow beneath dense tree canopies and get very little light. These plants evolved to efficiently capture light, which means they must be equally efficient when processing the gasses necessary for photosynthesis. Scientists believe this gives indoor plants better ability to absorb the harmful gases exuded from pretty much everything that is mass produced theses days, from furniture to flooring to wall paint.
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