1. Made of top-ranking materials, long lasting. 2. Reduce dust, pollen and other from penetrating into the air you breathe. 3. With good filtering effect, simple installation and use. 4. [Adaptive model] : CX7-2-30DB, CX7-2-30BP, CX7-2-30GM, CX7-2-35TM, cx7 -2- 35m, CX7-2-35O, CX7-2-35FF, CX7 -2-45BM, CX7-2-45IM, CX7-2-B360, CX7-2-S360, CX7-2-I360, CX7-2-45AN, CX7-2-45WM 5. : ZB3301, ZB3311, ZB3323B, ZB3325B, ZB3302AK, ZB3314AK, ZB3320P, ZB3323BO, ZB3324B, ZB3324BP, EL2115A, EL2120A, EL2125A colour: white Material: plastic Size: 8.75cm x 5.95cm Package Contents: 2 x 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.