Effectively removes bacteria, mites, PM2.5 particles in the air With a special antibacterial layer, it can effectively kill bacteria Quadruple cleaning effect with brilliant absorbency Suitable for 2 2C 2H 2S 3 3C 3H Pro air filter We suggest replacing the filter every 3-6 months All filters are equipped with RFID chip. Color:C:purple Material: composite material Package Contents: 1 x Air Purifier 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 a little different from the real thing. The measurement allowed error is +/- 1-3 cm.