No tools required for installation, simply insert the filter into the pleated filter compartment for quick and hassle-free setup. Maximize cleaning efficiency on various surfaces such as cabinets, carpets, and stairs while effectively filtering dust, pet hair, and pollen from the air. An affordable option compared to your original vacuum cleaner, providing the same high-quality filtration at a lower cost. Easily maintain the filter by gently removing dust or using an electric vacuum cleaner for thorough cleaning. Note that the filter is oil-proof but not waterproof. To maintain optimal performance, we recommend replacing the filter every 36 months, ensuring your machine works properly and efficiently. Item Name: Filter Bag Material: HEPA Features: Easy to Install, No Odor, Effective, Long Lasting Size Details: L: 15.9cm/6.26", W: 10.1cm/3.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Style 1Pc: 1 x Filter Bag Or Style 2Pcs 2 x Filter Bags