Follow these steps to change the filter on your Classic Pro air purifier:
1. Prepare for Maintenance: Turn off the air purifier and disconnect it from the power supply.
2. Open the Back Door: Use the handle to open the back door of the air purifier. Gently pull the small door edge with your thumb.
3. Remove Used Filters: Pull the tab to remove the used replacement filters.
4. Insert New Filters: Before usage, remember to remove the wrapping from the new filters and then insert them into the air purifier.
5. Perform Filter Reset: Close the back door and perform the filter reset by long-pressing the fan speed button for about 15 seconds until all lights come on.
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