We spend 90 of our lives indoors but modern buildings are so airtight that they reduce the natural draughts that used to keep our air healthy so if youre worried about the pollutants allergens bacteria and viruses that can build up in your indoor environment this new air purifier is one of the best choices you could make its sophisticated 4 stage filtration system combines plasmatrue technology with carbon and truehepa filters to remove pollutants and 9997 of airborne particles such a