I have never been lucky with indoor plants, usually killing them within a matter of weeks (by accident of course). But they can be great feature pieces inside your home, while also providing some healthy air to breathe.
A few years ago, the folks at NASA released their findings for the Clean Air Study, outlining which plants do the best job of filtering the air on the space station. Down on Earth, these plants can be used for the same purpose in your home and they are easy to find. They assist in producing Oxygen from CO2, and also help remove air contaminants such as benzene, formaldehyde and trichloroethylene. Their research also showed that they can reduce microbes like mould spores and bacteria by 50 to 60 per cent. If you are an allergy sufferer, or live in a polluted city, this might be right up your alley. Check out the full list of recommended plants here.
Not sure which plants to choose? Kamal Meattle took this to the next level. Living in New Delhi in 1992, he realized he was becoming allergic to the polluted air. He discovered three household plants that specifically reduce pollutants. Apparently, if you had enough quantities of these plants, you could live entirely off the air they produce, which is amazing.
If you still need more convincing, check out his TED talk presentation from 2009: