How you can grow a fresh oxygen? What are plants? They are: areca yellowish (Chrysalidocarpus lutescens), Sansevieria trifasciata (Sansevieria trifasciata) along with epipremnum gold (Epipremnum aureum). Areka yellowish removes CARBON DIOXIDE in city and turns it into oxygen. For one person you will need four shoulder-high plants being grown hydroponically or about biohumusie. The device must end up being properly nurtured: wipe at least once weekly and expose out every three or four months. Sansevieria (coil) is named. plant bedroom as turns CO2 into oxygen during the night time. For one person need 6-8 waist-high pieces. The third plant can be epipremnum gold, which is best harvested hydroponically. This unique plant removes formaldehyde as well as other volatile chemicals.