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Periodically:
1.
Unplug unit from power source.
2.
Remove front panel and filters as explained above.
3.
Replace carbon and particulate filters when contaminant level impairs efficiency.
4.
Remove top air intake assembly, by unclipping both rear retaining clasps and removing grease
cup, then lift straight off.
5.
Wipe any contaminants from inside unit with a cloth dampened with soap and water or
equivalent.
6.
Replace top, filters, front panel, reinsert grease cup, and
remember to refasten rear clips
.