This premium H13 Grade True HEPA Replacement is fully compatible with LV-H134 Tower Air Purifier. This True HEPA Filtration system contains the following filters: -Fine Preliminary Filter: Traps larger particle in the air like dust, hairs, pet fur, lint and more -H13 Grade True HEPA Filter: Captures 99.97% of airborne particles down to 0.3 microns in size, creating fresh air for you and your family -High-Efficiency Activated Carbon Filter: Absorbs household odors from pets, cooking, smoking, wildfire, and harmful VOC’s Fully Compatible with the following air purifier brands and models: - LV-H134 Air Purifier (NOT for LV-H133 or LV-H135) - ASIN B07DVYFBNY Using high efficiency air cleaner filters and replacing the filters regularly will help optimize air cleaning performance. Replace your LV-H134-RF filter every 6-8 months for optimal performance.