Why is there an abnormal noise when the Mijia Smart Air Purifier Max is running?

Question

Accepted Answer

If the Mijia Smart Air Purifier Max makes abnormal noises, please refer to the following steps:
1. Check whether the filter is properly installed and that the protective packaging has been removed.
2. Inspect the purifier for any foreign objects that have fallen inside. If found, open the filter compartment and remove the objects.
3. Check the laser particle sensor area for any debris.
4. Ensure the air purifier is placed on a flat and stable surface to avoid vibrations that can amplify operational noise.
5. If the noise persists, try power cycling the device by unplugging it for 10–20 seconds and then restarting.
6. If none of the above steps resolve the issue, contact after-sales service for further inspection.