1. The filter can reduce harmful odors and chemical odors in the house. The 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 Micrometres or larger, and filter out air pollution caused by PM 2.5. 2. Recommendation: Replace the filter every 2-3 months to optimize the performance of the air purifier. 3. High-efficiency activated carbon filter absorbs household odors from pets, cooking, smoking, wildfire, and harmful VOC's 4. Easy to replace and , no tools required. replace filters every 6 months for optimal performance. Colour:Black & White Material:plastic Package Contents: 1 x Replacement 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.