brand and high quality Made of high-quality materials, more durable Filter filters fine dust to reduce dust, pollen and other allergens from penetrating into the air you breathe. As part of normal maintenance, it can be easily removed and replaced It is best to replace spare parts every 2 to 3 months to keep the machine running at its best per compatiblemance : Material:plastic Package Contents: 1set x filters 1 x clean brush 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.