1. Brand new and high quality materials, well made, durable and perfectly matched to the equipment. 2. Clean accessories allow your home robot to maintain optimal performance. The contents of the accessories are easy to remove and replace as part of routine maintenance. While reducing dust, pollen and other allergens from infiltrating the air you breathe. 3. In order to achieve the best cleaning and filtration effect, the cleaning accessories should be replaced every 2-3 months depending on the frequency of use. 4. The dust bag of the sweeping robot to collect dust and debris inhaled by the robot while cleaning the floor. The fiber materials filter tiny particles from the air, thus reducing dust and pollutants in the indoor air. 5. The dust bag can also prevent dust and debris from escaping from the robot, keeping the indoor environment clean, and can filter smaller particles such as pollen, providing users with a healthier indoor environment. Material: non-woven fabric color: as