[Good Sealing] --- The dust bag is made of melt-blown fabric and non-woven fabric, combined with the cleaning station can effectively capture 99.7% of ultra-fine dust down to 0.3 tiny particles. [Auto Lock] --- It will lock automatically when you lift the dust bag, completely sealing the dust bag inlet to ensure dust and dirt stay inside the bag. [Tips for Use] --- In order to keep your robot running at its , please clean and replace parts in time. If you have allergies and pets at home, it is recommended to replace the dust bag every 2-3 weeks. Large capacity: The dust bag has a large holding space, which can collect more dust and reduce the cleaning frequency. Easy to replace: dust bag design is simple and easy to use, easy to replace, no special tools or professional skills are required. ✅Cpomatible Models: Compatible For Roborock QR 798 Compatible For Roborock QR 598 Compatible For Roborock QV 35A Color: As Shown Material: Non-woven fabric Package Contents: 12 * Dust Bag