The best way to grow a fresh air flow? What are plants? They are: areca yellowish (Chrysalidocarpus lutescens), Sansevieria trifasciata (Sansevieria trifasciata) and epipremnum gold (Epipremnum aureum). Areka yellowish removes LASER in city and switches it into oxygen. For one person you may need four shoulder-high plants being grown hydroponically or upon biohumusie. The device must possibly be properly nurtured: wipe at least once a week and expose out every 3 to 4 months. Sansevieria (coil) is named. plant bedroom as switches CO2 into oxygen during the night time. For one person need 6 or 8 waist-high pieces. The third plant will be epipremnum gold, which is best developed hydroponically. This unique plant removes formaldehyde and other volatile chemicals.