To resolve the issue, please follow these steps:
1. Remove the dust compartment and cyclone separator assembly, then clean out any accumulated dust and wash the filter and filter cotton;
2. Check if the suction port is blocked by foreign objects, and clear the blockage. If the dust mite vacuum cleaner ingests hard particles, it can cause abnormal noise during use. Cleaning out these hard particles can restore normal operation;
3. Ensure that after cleaning the filter, it is thoroughly dried before reassembly to prevent blockage.