Features: Keep your home-air clean and fresh-with the air purifier filter replacement, designed to effectively remove pollutants and-allergens. Made of high-quality plastic, this filter is durable and easy to install, ensuring long lasting-performance. Its white color and-sleek design make it a stylish-addition to your home. Ideal-for those who suffer from allergies or respiratory issues, the air purifier filter replacement is suitable for rooms between 101-150 square meters. Whether in your bedroom, living room, or office, this filter will help you breathe easier by eliminating harmful particles such as dust, pollen-and smoke. Trap large particle: Pre-filter captures large particles such as dust, lint, fibers, hair, and pet-fur, also helpful to maximize the filter life. Specifications: Material:Plastic Size:Approx.23.6x25.2cm/9.29x9.92inch Color:White Applicable area: 101-150 square meters Function: cleaning, filtering For LEVOIT-Core 400S/400S-RF Package Includes: 2pcs Air Purifier Filter note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.