1HIGH EFFICIENCY PARTICULATE AIR FILTER: Specifically designed for use with the for Winix 5500 2 air purifier, this filter provides exceptional air filtration, capturing and removing airborne particles with high efficiency. 2COTTON FIBER ACTIVATED CARBON MATERIAL: The AAA activated carbon filter utilizes premium materials to effectively absorb and eliminate odors and harmful substances present in the air, ensuring fresh and clean indoor air quality. 3PREMIUM MATERIALS: Made from premium cotton fibers and excellent performance activated carbon, the activated carbon cotton filter is both environmentally friendly and durable, guaranteeing long lasting and reliable filtration performance. 4EFFECTIVE FILTRATION: The filter efficiently helps remove airborne particles such as smoke, pollen, dust mites, and pet dander, while also adsorbing harmful gases, ensuring a healthy living environment for your family. 5EASY REPLACEMENT: With its clever design, the filter is incredibly easy to replace, requiring no tools. Simply remove the old filter and replace it with the new one for hassle free and fast filter replacement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.