Great Seal Without Leakage: The sealed design, crafted with hygienic materials, prevents dirt and odor from leaking, ensuring a clean and fresh environment. Effective Filtration: Efficiently filters dander, mold, and other common household allergens, promoting healthier indoor air quality. Versatile Auto Emptying: With a spacious 3L dust bag, enjoy up to 75 days of hands-free cleaning. The 3-pack replacement set ensures long-term maintenance convenience. Note: Performance is based on internal eufy testing. Results may vary depending on your home environment. Note: To protect your robot vacuum and extend its lifespan, we recommend using authentic eufy replacement parts. We’ve received complaints about non-compliant sellers offering substandard alternatives. Compatible with the eufy Robot Vacuum 3-in-1 E20.