1. Made of high quality materials for durability 2. Filter dust, pollen, smoke, odor, mold spores and pet dander to reduce secondary pollution of air 3. Activated carbon filter can reduce odor in living space and improve air quality 4. As part of normal maintenance, it can be easily removed and replaced H13 filters remove 99.9% of particles to leave you with fresh, clean air 5. This air purifier filter pack also uses a 3-stage system with a washable pre-filter, H13 media to eliminate harmful particles, and an active carbon filter that removes unsavory odors throughout your home. 6.Keep your home purification system in tip-top shape by replacing the air filters every 3 to 4 months. Colour:White + Black Material:Fiber + Plastic Package Contents: 1 * Air purifier filter Only the above package content, other products are not included. Note: Light 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.