Swisens is one of the most promising cleantech start-ups in Europe. STARTUPCITY awarded Swisens with the award and wrote an article. In the dedicated article, CEO and co-founder Erny Niederberger gives insights into the company's success story. The seeds of innovation were planted when Erny Niederberger developed sensitive smoke detectors for his former employer. The challenge was to reliably differentiate between smoke, water vapor and dust particles while at the same time deriving the sensitivity to different aerosol particles in the ambient air.