Multilayer 3D bag specially designed for the Max built-in vacuum cleaner. The filter bag retains dust well. Thanks to the hemmed bottom, it takes on a comfortable shape for work. The filter bag is reusable. The average life of the bag is 1.5-2 months (with regular care). In order for the vacuum cleaner to work effectively, it is recommended to replace the bag with a clean one at the beginning of the working day. Clean the filter bag with a gentle wash at a water temperature not exceeding 40 degrees. Dry before use.