1. This filter can reduce harmful and chemical odors in the indoor environment. The High-Efficiency Particulate Air (HEPA) filter can capture 99.97% of dust, pollen, smoke, mold spores, and pet dander. These air filters can trap particles as small as 0.3 microns or larger and filter out air pollution caused by PM2.5. 2. Recommendation: Replace the filter every 2 - 3 months to optimize the performance of the air purifier. 3. The high-efficiency activated carbon filter can absorb household odors from pets, cooking, smoking, wildfires, and harmful Volatile Organic Compounds (VOCs). 4. It is easy to replace and is a disposable item, requiring no tools. To achieve optimal performance, replace the filter every 6 months. Color: Black and white Material: Plastic Package contents: 1 High-Efficiency Particulate Air (HEPA) replacement filter Only the above package contents are included, and no other products are provided. Note: Light reflection and different monitors may cause slight differences between the color of the items in the picture and the actual product. A measurement error of ±1 - 3 cm is allowed.