The plants proved to be very helpful in absorbing carbon monoxide, the toxic exhaust gas that can build up in buildings with low ventilation. Laboratory studies conducted by NASA revealed that a spider plant in a small, enclosed space can remove 96% of the carbon monoxide from a room.

Plants in living areas have long been seen as healthy and beneficial. Studies have proven that plants reduce stress, elevate mood and improve feelings of well being. Plants also provide cleaner air and absorb toxins and dust. Studies have also proven that patients recover faster in hospitals with an abundance of greenery.

While all plants help indoor environments, certain varieties have proven to be more effective. Boston fern, pot chrysanthemum, gerbera, rubber plant, weeping fig and peace lily, for example, can dramatically improve air quality by removing formaldehyde from the atmosphere through their leaves and roots.

Formaldehyde is frequently emitted by gas cookers, tissues, carpet backing, ceiling tiles and cigarette smoke.

in addition, dragon tree plants and dracaenas absorb many of the harmful emissions from computers, printers, and chipboard.