In our house we have this kind of plant what we called snake plant or mother-in-law's tongue.
According to ayurveda - It absorb nitrogen oxides and formaldahyde.
Health Advice Magazine - It said besides being able to remove toxins, the plant is great for keeping it in the bedroom because it is able to produce oxygen at night.
Steemians if I have a big garden or farm I want to plant more plants so that we breath with fresh air.