One benefit (probably the biggest one for humans) of having plants in your home is their ability to replace toxins in the air with 100% pure indispensable oxygen. Cleaning products, new carpets, kitchen stove, candles etc are the common culprits of the household. Outdoor pollution is a bigger headache altogether.
Houseplants are not something you would typically associate with NASA though, but in the late ‘80s the US government agency joined forces with the Associated Contractors of America (ALCA), to determine the most effective indoor plants for removing toxic agents from the air.
The study, led by Dr. B. C. Wolverton, found that some plants were effective at filtering out the likes of benzene, ammonia and formaldehyde from the air, helping to neutralise the effects of sick building syndrome.
Here is the infographic detailing what plants to have :
Source: lovethegarden.com