Features: Compatible With: Exclusively designed fit for HC-888 humidifier to maintain its high performance. Main Purpose: Uses a natural evaporation process that draws in dry air, adds water molecules to the air, and delivers humidified air into the room. Developed for water absorption and evaporation efficiency. Main Material: Made of professional filter paper to ensure optimal performance. Honeycomb pad design, allows for maximum absorption of water for optimum moisture output. Main Function: The densely covered tiny pre-filter layer is more helpful to capture and filter out large particulate matter in the air and provide additional structural support. Easy To Install: The stable filter structure is not easy to break in wet water and is easier to install and replace. Specifications: Type: Humidifier Filter Material: Wood Pulp Paper Color: White Size(W*H*T): About 450x145x22mm/17.72x5.71x0.87inch Compatible With: Fit For HC-888 Package Included: 4pcs x Humidifier Filter Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.