Model Compatibility: Compatible with eufy Omni S2/S1 pro/S1 Less Maintenance: Each dust bag holds 2.5L and allows up to 68 days without manual emptying. The 3-pack replacement covers approximately 6 months of use Sealed Feature: Sealed design with a higher opening position captures fine dust, providing reassurance for thorough dust collection Disposable: When the dust bag is full, replace it regularly for optimal performance Genuine eufy Accessory: For optimal performance and to extend the lifespan of your vacuum, always use genuine eufy accessories.