For millions of years, humans lived in close contact with sunlight, vegetation and fresh air. Today, most of us spend 80-90% of our time indoors. Based on years of research into the complex connection between nature and people, gathered by Norwegian mechanical engineer Jorn Viumdal, Skogluft reveals how installing a wall of easily available plants in an indoor environment can dramatically improve health, strengthen the immune system and increase productivity. A low-tech solution to creating air you can live with all year around.