[Perfect Compatibility] Our replacement LV-H128 filters are compatible with LEVOIT LV-H128, ROVACS RV60, and PUURVSAS HM669A air purifiers. This product is comparable to part numbers LV-H128-RF, HM669A, and RV60. Please verify your air purifier model before ordering. Note: This is not an OEM product. Brand or model names are used only to indicate compatibility. [Great Value Package] This package includes 4 premium H13 grade true HEPA filters. It is a cost-effective option for replacing HEPA filters in your air purifier. For optimal performance, replace the filter every 3 to 6 months to maintain clean indoor air for your home. [360 Degree Purification] The 3-in-1 filter design includes a nylon pre-filter, an H13 grade true HEPA filter, and an activated carbon filter. This upgraded filter effectively captures up to 99.9% of airborne particles such as smoke, cooking odors, pet odors, dust, allergens, and other impurities. Enjoy a clean and comfortable indoor environment with high-efficiency filtration. [Improved Design and Quality] The upgraded LV-H128 filter is constructed with high-quality non-woven fabric and activated carbon. Featuring a low-resistance, energy-efficient design, it reduces wind resistance for improved airflow and lower energy consumption, helping extend the life of your air purifier. All materials are environmentally friendly and responsibly sourced. Precision craftsmanship ensures durability and consistent performance.