Compatibility: Our disposable dust bags compatible with various for robot vacuum cleaner, including S8+, S8 Pro Ultra, S7 MaxV Ultra, Q5, Q5+, Q5 Pro, Q5 Max+, Q5 Pro, Q5 Pro+, , +, Max, Max+, Q8 Max, Q8 Max+, S7 Pro Ultra. Please kindly check your machine model Leak-Proof Design: Our for Qrevo dust bag with a rubber seal has a strong sealing property to all the dirt inside the vacuum cleaner bag is collected. The rubber gasket is thick enough and can seal the dock well. 't lead the dock to get full of dirt Efficient Filtration: Our for bag are made of premium 2-layer superfine melt-blown fiber filter and 2-layer non-woven fabrics. Lock 99.97% of dirt, hair and other particles down to 0.3 microns, 3L replacement bag can hold more debris User-Friendly: Easily remove the robot vacuum bag and insert a replacement along the holder slot. The push-pull handle design is simple and convenient. Please replace the for bag every 1-2 months to keep your robot vacuum in optimal working condition :