NASA ne paudhon ko band kamron mein parakha tha

NASA ke 1989 ke Clean Air Study mein spider plant aur areca palm jaise paudhon ko band chambers mein parakha gaya, jahan unhone kuch vayu pradushak kam kiye. Ghar mein asar bahut chhota hota hai — taazi hawa aur ventilation hi asli safai karte hain.