Moss has the natural ability to bind and metabolize fine dust. In addition, mosses cool the ambient air by evaporating water on their enormously large leaf surface. We combine these natural abilities with state-of-the-art sensor technology and smart ventilation & irrigation technology. The combination of these technologies not only ensures the survival of mosses outside their natural habitat, but additionally optimizes their cooling and filtering effect on the environment. The built-in sensor technology additionally generates enormous amounts of real-time data, which is made visible by a specially developed online dashboard and can be used to prove the air quality as well as the environmental performance of the bio-filter.