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