BusinessA new vacuum cleaner filter created to tackle pollutionTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusiness05/14/2019May 14, 2019Following the infamous diesel scandal, Germany has been trying out all sorts of things to clear the air: Now Stuttgart sees the introduction of vacuum cleaners that can remove nitrogen dioxide from the air.https://p.dw.com/p/3IV01Advertisement