Working pressure: 0.1-0.4 Mpa Filtration accuracy: 0.005 mm Built-in PP filter Color: White + Blue Material: PP Size: Length: 102 mm Diameter: 47 mm Package Contents: 10 * Air purifier filter Only the above package content, other products are not included. Note: Light shooting 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 +/- 1-3 cm.