Leitz TruSens Replacement 3-in-1 H13 HEPA Filter for Leitz TruSens Air Purifier Z-2000. This replacement filter is an all-in-one filtration system that combines an H13 HEPA filter with activated carbon and a separate washable pre-filter. The combination filter is designed to capture ultrafine airborne particles such as bacteria, viruses, dust, allergens, pet hair and dander, volatile organic compounds, as well as odor-causing gases. The 360-degree H13 filter system draws air from all directions and removes pollutants from the entire room that can trigger allergies and other symptoms. The washable pre-filter provides the first line of defense against larger particles like dust and pet hair and can be cleaned under running water with mild soap as needed. The activated carbon filter captures odors and certain gases and should be replaced every 3 months. The H13 HEPA filter captures at least 99.95% of ultrafine particles between 0.1 and 0.2 microns from the air. Based on test results from TÜV SÜD, the filter meets the H13 HEPA requirements according to EN 1822-1:2019 and EN ISO 29463-5:2018. The air purifier indicates when the filter needs to be replaced with a control light. Compatible with Leitz TruSens Z-2000 air purifier for medium-sized rooms.