DuPont Replacement Filter 2-In-1 HEPA Drum for TruSens Z1000 Air Purifier The filter is at the core of purifying your air and replacing it is essential for optimal air purifier performance. This 2-in-1 filter combines a carbon prefilter for capturing large particles like hair and dust with a HEPA type filter for trapping small particles. FeaturesThe TruSens combination filter has been engineered to collect microscopic particles, allergens and volatile organic components (VOC’s), and odorous gases 360 degree filtration draws in air from all directions, collecting pollutants such basic household odours and airborne allergens Carbon prefilter captures odours and certain gasses, and offers the first level of defence against dust and pet hair HEPA Type filter removes pollutants as small as 0.3 microns – that’s roughly 30 times smaller than a strand of hair Change indicator light is displayed on purifier when filters need to be replaced Compatible with TruSens Z1000 Air Purifier Specifications Use With: Z-1000 Air Purifier Type: Filter Best For: Standard Filtration Dimensions: 18.5 x 18.5 x 9.5 cm Period of Warranty: None Life Expectancy: 12 - 15 months Washable: Not Washable Dated_Indicator: Undated