Andrea, the air purifier that uses indoor plants, designed by Mathieu Lehanneur & David Edwards will soon be on sale. Since its outline design two years ago Andrea has gone thru stringent tests to ensure perfect efficiency, enabling the system to step into the real world. Its market début could not have come at a better time, with calls last month by consumer watchdog UFC-Que Choisir? that public authorities ban dangerous chemical used in common household products. The safe-goods whistle-blower pointed out – ahem, cough, splutter, wheeze – that the air we mortals breathe in the places where we live and work can be 5 to 10 times more noxious than what it is out on the street! Heading the XXX death’s head list of invisible poisons are glues and plastics that give off formaldehyde particles.