Review on RONGJU Roborock S5 MAX S6 S50 E20 E25 E35 Xiaomi Mi Mijia Accessories Kit: 6 Side Brush, 4 Filter, 2 Main Brush & 2 Mop Cloth – Replacement Parts for Efficient Vacuum Cleaning by Daniel Hhneverdie

I have both S5 Max and S4. These replacement brushes and filters will fit but are not standard parts. You can see in my first picture that the thickness of the brushes on the manufacturer's reel (above) is much thicker than the replacement. The thinner brushes leave large gaps around the suction area. Whether this affects the cleaning performance of vacuum cleaners in general, I have not yet determined. You can also see that the corner brush is very different. The standard brush has 5 handles made of durable and flexible rubber material. This replacement only has 3 rigid rods with nylon bristles on the ends. The filters look the same except for the color difference. In fact, this may be the only place where this replacement kit outperforms the original parts as these filters have additional mesh coverage that the OEM part does not have. So far I've only used these replacement parts once on the S5 Max, so I don't have a comparison. I wonder if they really need to be replaced. The filters can be washed in the sink. The brushes can be cleaned regularly. Is it really that important to swap them out every few hours?