The bionaire designer air purifier creates a comfortable home environment with its new compact stylish design and permanent filter its long life filtration system removes up to 99 of indoor airborne particles including pet dander dust smoke and pollens with its quiet operation less than 60db it will go unnoticed in any home featuring a long life hepa type filtration with a 5 stage filtration system there is no need to replace the filter you simply vacuum to clean and replace the a