We now have our system installed in a bus. After 3D-scanning the engine compartment, we could 3D-print components that were surprisingly simple to install. Here you see ViruBustor co-founder, Marvin Siebert, testing the airflow, where we found that we were extracting around 3000 litres per minute from each of the 3 vents. By comparison, a person normally breaths out about 80 litres per minute.