When it comes to air purification, house plants still remain the safest and the most visually attractive option. That is why French designer Mathieu Lehanneur and Harvard professor David Edwards employed the power of plants to create Andrea, the eco-friendly air purifier. The idea is simple – air is sucked into the device, where it gets filtered through the plant, soil and water. After that it gets recirculated back into the room. No filters to change, no components to clean. Just a beautiful, quiet machine that takes as much space as an average planter. Andrea is low on energy consumption and works with any plant.