1. The filter can reduce harmful odors and chemical odors in . The HEPA filter can capture 99.97percent 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 disposable, no tools required. replace filters every 6 months for optimal performance. Colour:Blue and 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.