4L large capacity dust bag, hands-free cleaning (testing data is from Dreametech’s lab. Performance may vary in different environments). Auto-empty dust bag is sealed to prevent secondary dust pollution. Easy to Use: Just remove the dust bag and install the new dust bag in its place. Instructions for use: In order to maintain cleaning efficiency and extend the life of the machine, please clean and replace the dust bag regularly. Package Include: 3PCS Dust Bags dreame Robot Vacuum Dust Bags, 4L Vacuuming Bags for Collecting Hair, Dirt, Dust, and Debris (3pcs) for 10s Plus / L10s Pro Gen2