As a pioneer in the sweeping branch and being aware of the growing fine dust issues cities are facing, RAVO takes responsibility by finding innovative solutions to reduce fine dust. We proudly introduce you the RAVO HYGION. This model is equipped with the unique and patented SAIGA Particle system which has been tested and approved by TÜV Germany. The SAIGA particle system captures PM10 and PM2.5 from the airflow of the machine by positive ionisation. It is safe for operators and, unlike conventional filters, it does not affect the sweeping performance in anyway.