These HEPA filters are compatible only with the Moosoo K17 cordless vacuum cleaner, not the K17 Pro. Please confirm your model before purchasing to ensure compatibility. WASHABLE AND REUSABLE: Regular cleaning helps maintain optimal filtration and suction power. If washed, filters must be completely dry before reuse. EASY TO REPLACE: Remove the dust collection cup and rotate to take out the HEPA filter. PACKAGE CONTENTS: 6 HEPA filters, 6 strainer screens. For best performance, replace the filter every 2–3 months. The HEPA exhaust filter features a mesh design that effectively captures 99.9% of particles collected at the cleaning nozzle. Replacement instructions: 1. Rotate the container slightly counterclockwise to release it. 2. Open the lid and remove the HEPA filter and screen from the container’s honeycomb structure. 3. Insert a new HEPA filter and screen. If cleaning with water, allow the filter to dry for at least 24 hours before reuse. Material: Plastic Color: As shown Package includes: 6 x HEPA filters, 6 x strainer screens. Other items not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3 cm.