Each dust bag holds 3.5L of dust, pet hair, and debris, providing weeks of continuous cleaning without frequent changes. Advanced 4-layer filtration system effectively captures dust and particles while maintaining strong airflow and suction power. Tool-free installation allows for easy replacement in seconds without the need for tools or technical skills. Specially designed for bObsweep Dustin and -i self-emptying robot vacuums with -engineered cardboard insert for seamless auto-empty station recognition. Includes 6 disposable dust bags and 1 cleaning brush, recommended replacement every 1-2 months to optimal performance.