1. high-quality materials, well-made, durable and perfectly matched with the equipment. 2. Clean accessories keep your home robot at peak percompatiblemance. Accessory contents are easily removed and replaced as part of routine maintenance. Also reduces the infiltration of dust, pollen and other allergens into the air you breathe. 3. In order to achieve the best cleaning and filtering effect, cleaning accessories should be replaced every 2-3 months depending on the frequency of use. 4. HEPA filter can greatly improve air quality and reduce particle size by up to 99.97%. Helps remove household dust, pet dander and more. 5. Say goodbye to odors, the pre-filter can help reduce unpleasant odors from pets, smoke, cooking fumes and a variety of household and chemical products. 1. high-quality materials, well-made, durable and perfectly matched with the equipment. 2. Clean accessories keep your home robot at peak percompatiblemance. Accessory contents are easily removed and replaced as part of routine maintenance. Also reduces the infiltration of dust, pollen and other allergens into the air you breathe. 3. In order to achieve the best cleaning and filtering effect, cleaning accessories should be replaced every 2-3 months depending on the frequency of use. 4. HEPA filter can greatly improve air quality and reduce particle size by up to 99.97%. Helps remove household dust, pet dander and more. 5. Say goodbye to odors, the pre-filter can help reduce unpleasant odors from pets, smoke, cooking fumes and a variety of household and chemical products.