Fine particles, dust and cigarette smoke don't stand a chance against this air purifier. There are 4 different filters that work together to help users breathe again. These filters form the heart of the Piemont purifier. They include a preliminary filter to capture large dust and dirt, an activated carbon filter that takes care of odours and small particles, a HEPA filter to remove 99.97% of all dust and allergens and a UV-C lamp that kills bacteria and viruses. Of course, the lamp isn't truly a filter, but it works like one thanks to the integrated titanium oxide metal plate (UV sterilisation). When it's time to replace the combination filter (preliminary, HEPA and activated carbon), the unit gives an auditory and visual signal. The air purifier features five different settings. The lowest setting is the quietest at just 30dB. On the highest setting, the purifier has a filtering capacity up to 210m³/h and can clean the air in a 18m² more than four times per hour. The integrated timer function (0-8hr) allows you to run the purifier whilst you sleep in peace, for example. The control panel is located on the top of the purifier.