Features: Made of high-quality material, this air purifier filter is designed to capture even the tiniest particles that other filtersmight miss, such as allergen, dust, and petdander. For those who suffer from allergies or respiratory problems, as well as families with pets or youngchildren who want to maintain a healthyliving environment. With its durable and long-lasting design, this air purifier filter is an essential investment for anyone looking to improve their indoor air qualityand create a healthier livingspace. Perfect for use in any indoor space, from bedrooms and living rooms to offices and workspaces. With these replacement filter, you can enjoyfresh, clean airwithout worrying about harmful pollutants orallergens. Specifications: Material:Plastic Size: Approx.30x28.5x2.5cm/11.81x11.22x0.98inch Applicable area: 101-150 square meters Functions: air purification, cleaning and filtration. For LevoitVital 100 Package Includes: 3x Air Dust 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.