Fit for Vista 200 Air Purifier Filter: Replace the filter (for Vista 200-) to maintain the best working efficiency and capacity of your Vista 200 Air Purifier and breathe fresher and cleaner air. Level 3 filter system: Only for Vista 200 filter is used. Nylon pre-filter + real HEPA filter + activated carbon filter to help remove 99 times more effectively. 97% of dust, pollen, tobacco smell, pet dander, especially suitable for people with allergies. Convenient filter replacement: no tools are required for easy replacement and handling, ensuring you replace the old filter within a few minutes.The filter is sealed to protect its service life. Before putting in the air purifier, remove the packaging of the filter. The high-efficiency replacement filter includes pre-filter, TRUE HEPA filter and activated carbon filter.The pre-filter can capture larger particles in the air, such as dust, hair, pet fur, , and extend the life of the HEPA filter; the high-efficiency activated carbon filter can neutralize pets, cooking, smoke and harmful volatile organic compounds Family smell. Replacement: The air purifier filter elements is older, the operating time of the air purifier be reduced, and the air purifier produce more pollutants. Therefore it is recommended to replace the filter every 6-8 months. Colour: black Material: plastic Package Contents: 4 * HEPA Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.