Features: Humidify air, significantly improve the air purification capacity of the net ion group. Fit for Holmes HM1750,HM1746,SCM1746. Made of wood pulp paper material, which ensures the maximum durability. Easy installation, a direct replacement for the old and broken one. Replacement filter is an ideal replacement for natural cool moisture humidifiers and will greatly assist in the removal of minerals and pollutant from the water. Specification: Model:B Material:Wood Pulp Paper Color: As shown in the picture Type:Cool Mist Weave Way: Twill Diameter of Single Filament :100mm (mm) Radial Fracture Strength: < 50 (N/cm) (N/cm) Density:20 mesh/inch (root /10cm) Size: Approx.22.5x17x1.8cm / 8.9x6.7x0.7in Weight: Approx.100g/3.5oz Package List: 1 xHumidifier Replacement Filter Note: It is suggested to maintain once a month. Using clean water, rinse the mesh surface 2-3 times. Do not rinse too hard.