1.[Fully Compatible with Vista 200]The Vista 200 replacement filter is specially designed for LEVOIT Vista 200 Air Purifier. Compared to Part #Vista200-RF. Vista 200-RF Filter Size: 6.4 x 4 inches. (NOTE: Please make sure your air purifier model matches our Vista 200 Filters before purchasing.) 2.[3-in-1 True HEPA Filtration System]Our Vista 200 filter replacement is specifically designed in 3-in-1 True HEPA Filtration System, which has stronger filtration effect on ultra-fine suspended below 0.1um. The Pre-Filter, Personal HEPA Filter, and Activated Carbon Filter work together to airborne particles and unwanted odors in your living space for improved air quality. 3.[Higher Efficiency & Longer Life] Vista200-RF replacement filter is made of non-woven fabric and activated carbon, both adopt advanced lower energy consumption and lower density structure technology verified by the manufacturer, with low wind resistance, higher efficiency and less pressure to ensure maximum filtration. And the upgraded electrostatic electret filter technology which used in non-woven fabric ensures energy saving and a longer life. 4.[Valuable Packs] Package includes 2 x Vista 200 Replacement Filter. Vista200-RF filter replacement contains all the required parts to complete the standard installation of your Vista 200 air purifier. It is recommended to replace your filters for every 6-8 months,depending upon your usage and environment. It is cost-effective and the right choice for you.