Premium HEPA vacuum filter is made with high quality and eco-friendly material to ensure the filters endurance. To enhance the filters performance it is washable and reusable. Rinse the filter under clean water and allow the filter to dry completely. *Please make sure filter is fully dry before installing.* | | Premium HEPA filter is compatible with the following model: LA300, LA301, LA301C, LA322, LA322NP, LA351, LA500, LA500WM, LA502, LA502NP, UV850, UV900. Compared to Part XHF320 XFFK320 | | True-HEPA captures up to 99.97% of particles, as small as 0.3 microns. Our premium filters are made with the best quality to keep your home as clean as possible. | | Dimensions: 4.4 in x 3.6 in x 1.5 in. 3 Premium HEPA filters included. Suggested to clean every 2-4 weeks and replaced every 3-6 months. 100%