If there is a lot of white powder on the humidifier filter of the Mijia Smart Air Purifier with Humidification Pro after extended use, please refer to the following troubleshooting steps:
1. The white powder is caused by the accumulation of calcium and magnesium ions from the water on the filter surface over time. Rinse the filter with clean water, and once it is thoroughly cleaned, place it back into the device.
2. Check the water tank and humidifier filter for visible scale or mineral deposits, and clean them regularly.
3. Empty any remaining water in the water tank before adding clean water. Avoid leaving water in the water tank for an extended period.
4. If the white powder accumulates again quickly after cleaning, try using purified water from a water purifier for humidification.
5. If the white powder remains excessive after regular cleaning and using purified water, please contact your local after-sales service center for further assistance.