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1. Dry the dust box and filter components. Keep them dry to ensure a
longer service.
2. After the pre-filter is used for 15~30 days, it should be washed once.
3. The maximum service life of the high-efficient filter is 3 months.
1. Reinstall the pre-filter and high-efficient filter in the dust box.
2. Before installing the filter, make sure that the high-efficient filter and
the pre-filter are dry.
3. Do not expose the high-efficient filter and the pre-filter to sunlight.
Cover the dust box and fix it into the main body.
