'In the late 1980s, a study by NASA and the Associated Landscape Contractors of America (ALCA) was conducted to find ways to purify the air for extended stays in orbiting space stations. The study resulted in excellent news for homeowners and office workers everywhere, because it concluded that common houseplants not only make indoor spaces more attractive, they also help to purify the air! While it’s a well known fact that plants convert carbon dioxide into oxygen through photosynthesis, the NASA/ALCA study showed that many houseplants also remove harmful elements such as trichloroethylene, benzene, and formaldehyde from the air.'
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