German start-up Green City Solutions has created massive vertical planter boxes filled with air-filtering plants to improve air quality in urban areas. The company is working on a project called the Urban Air Quality Management System (UAQMS) Each CityTree is also equipped with a digital screen to allow the space to be used for advertising. Integrated benches and the offer of additional services such as Wi-Fi hotspot or e-bike charging stations extend the functionality of the biofilters. Hong Kong, Oslo, Paris and Dresden are among the handful of cities currently using CityTrees.
German start-up Green City Solutions has created massive vertical planter boxes filled with air-filtering plants to improve air quality in urban areas. The company is working on a project called the Urban Air Quality Management System (UAQMS) Each CityTree is also equipped with a digital screen to allow the space to be used for advertising. Hong Kong, Oslo, Paris and Dresden are among the handful of cities currently using CityTrees.