Overview All-in-one filter system combines HEPA with activated carbon and a separate washable prefilter. This combination filter has been engineered to capture microscopic particles, allergens and volatile organic components (VOC’s), and odourous gases. Key Features The filter is at the core of purifying your air. Filter replacement is essential for your purifier to perform at its best. 360 degree filtration draws air from all directions, collecting pollutants that may affect allergies. Washable prefilter offers the first level of defense against dust and pet hair. Handwash as needed. Carbon filter captures odours and certain gasses. Replace every 3 months. HEPA Type filter removes pollutants as small as 0.3microns