DURABLE WITH GOOD DURABILITY: These -made humidifier mineral absorbent pads are made of high-quality composite material for absorbency and durability, you can use with . Practical features: Humidifier filter pads can help humidifier performance, reduce stubborn mineral buildup on the humidifier heating plate, and help prolong the life of the humidifier. Size Information: These mineral absorbent pads measure approximately 53 x 50 mm / 2 x 1.96 inches and will fit into humidifiers commonly found in homes and offices, make they 't take up too much space. Warm service: These humidifier replacement filter pads generally last about 2-4 weeks, the actual time varies with the hardness of the water, please replace the filter in time when necessary to product stability and reduce deformation loss during transportation, drill Pads are specially reserved. Please remove when using. Abundant : We humidifier filter pads in one package, enough is enough for your daily use and replacement needs, of course you can share with your . Colour: White Material: composite material Package Contents: 80 x Humidifier Filter Pads Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.